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1934/1935 Melbourne Centenary Florin

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Pillar of the Community
Australia
852 Posts
 Posted 12/07/2017  4:25 pm  Show Profile   Bookmark this reply Add nealeffendi to your friends list Get a Link to this Reply
Sel, considering the latest research on the Centenary was only published this year then that dealer would not have known of the various new die pairing findings. I can't believe that a fake could be that good 3 years ago and not have flooded the market with more examples. 6 tiny inconsistencies might just be 6 tiny differences between genuine die pairs.
Matthew sent me XRF analysis results yesterday for about 8 different die pairs. Although the way I see it if you wanted to create perfect fakes of pre decimal silver then just get a bag of junk grade pre decimals and melt them to make new blanks with the same alloy mix.
Bedrock of the Community
sel_69l's Avatar
Australia
21788 Posts
 Posted 12/08/2017  12:49 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Using modern 90% or 22 ct melted coins is the most popular source metal for modern high quality fakes.

That is why XRF is more useful for metal analysis on ancient coins. The ancients never had access to modern electrolytic metal refining processes. You look for trace metals instead.

Cleaned up fake dies can me made by laser optic profiling to produce a digital model. A die is then cut by a spark erosion process, using that model as instructions for cutting the die. The process is automated.

A good industrial die cutter with the necessary skill is then employed to finish the die to the required standard.

This sort of technology has been around for 15 years or more.

A professional coin dealer who subscribes to the IBSCC* can access good assistance in helping him identify modern high quality fakes. That is one reason why a good professional coin dealer worth his salt can be so helpful, and make up for my lack of expertise with modern coin fakes.

* International Bureau for the Suppression of Counterfeit Coins.
I believe this organization is now known by another name.
Perhaps someone else here in the CCF can help in this regard.
Valued Member
squaremealroundplate's Avatar
Australia
185 Posts
 Posted 12/08/2017  06:27 am  Show Profile   Bookmark this reply Add squaremealroundplate to your friends list Get a Link to this Reply

nealeffendi and sel_691

Thanks to both you for your dedication in your pursuit of " scientifically " accurate, reliable knowledge and, especially, for sharing that knowledge with us all.

sel_691 thanks for your lead :- it appears as though the IBSCC bulletin on counterfeits ceased Dec 2006 and had a bit of a hiatus, then revived , before being incorporated into forgerynetwork.com.

I can't yet determine how up to date it might be, but nonetheless, there's some interesting reading there.

sel_691, your last post....Using modern 90% or 22ct melted coins...... your detailed and precise post is really 100% brilliant. Are you a metallurgical scientist?
Bedrock of the Community
sel_69l's Avatar
Australia
21788 Posts
 Posted 12/08/2017  07:32 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
My next door neighbor has a pHd in materials science.
He personally owns quite a bit of high end scientific analysis equipment, including an electron microscope.

Has a hand held XRF instrument, but suggests that is not of much use to pick modern fakes, because the best modern fakes and genuine coins all use standard coinage alloys.

He is quite often contracted by police forensics on a consultant service basis. Gives lectures and attends materials science symposia out of Australia quite often, but is getting rather sick of frequent overseas travel away from Australia; wants to spend more time as a dad with his family.

It's just that I feel rather lucky to have easy access to this sort of talent and expertise.

He steps back from providing advice on style and provenance with ancient coins,
but is happy to provide advice on all types of fake coin manufacturing techniques, and their telltale characteristics to aid in the identification of them.
Valued Member
squaremealroundplate's Avatar
Australia
185 Posts
 Posted 12/10/2017  6:32 pm  Show Profile   Bookmark this reply Add squaremealroundplate to your friends list Get a Link to this Reply

It appears that there isn't any up to date dedicated forum available specifically for counterfeit Australian pre - decimal coins. My. and probably many others, point of view is : is it now not time something that is verging on essential be done, as a result of the growing influx of counterfeit florins, crowns, etc, and use this forum as a conduit for people - potential buyers - to be able to submit ebay item numbers of their intended purchase(s) to be evaluated for authenticity ?

I think that there is only one way to combat this growing counterfeit scurge and to stop, or at least put a severe dent in, the " couldn't care less, we only want the fees " ebay listings- us, together.

Is this a worth while concept to start on this ACC forum under its own separate unique section ?

Reputable ebay sellers might consider mentioning this ACC forum's counterfeit section somewhere in the desciption section of their listings to make buyers AWARE that such a forum exists.

I can't think of any better way, to at least try, to ensure that the counterfeiters are weeded out.

Australians versus the counterfeiters.

Your thougths, please.
Pillar of the Community
Basil's Avatar
Australia
1040 Posts
 Posted 12/10/2017  8:45 pm  Show Profile   Bookmark this reply Add Basil to your friends list Get a Link to this Reply

Quote:
Reputable ebay sellers might consider mentioning this ACC forum's counterfeit section somewhere in the desciption section of their listings to make buyers AWARE that such a forum exists.

I can't think of any better way, to at least try, to ensure that the counterfeiters are weeded out.

Australians versus the counterfeiters.

Your thougths, please.


I think there is a Thread on the Australian Coin Forum for people to list Fakes but it wouldn't hurt to have one here as well.
Valued Member
squaremealroundplate's Avatar
Australia
185 Posts
 Posted 12/11/2017  01:12 am  Show Profile   Bookmark this reply Add squaremealroundplate to your friends list Get a Link to this Reply

I had in mind a stand alone Counterfeits/Fakes ACC Forum subtitle, instead of Counterfeits/Fakes all being grouped in together within the Australian Variety, Error Coins, Banknotes and Paper Money forum.

It can take a lot of reading within that Forum's many, many other ( generally interesting and informative ) posts to find the posts directly relating to Counterfeits/Fakes.

This thought/suggestion might be a bit of a long shot to implement, but I believe an effort should/could be made for the benefit of ALL Australian collectors to, at least, have an opportunity to not have to second guess, and hope like hell, that any Australian pre - decimal coin(s) they are intending to buy is 100% Pure. If these potential buyers of pre - decimal Autralian coin(s) can be made aware that Australia has an up to date forum which they can readily use as a 100% accurate reference point BEFORE they make their purchase(s).

There are many wise, highly experienced and very reliable people posting to this forum.

Can we consider this proposal ? Why shouldn't we, Australians, do something about the Counterfeiters?

Pillar of the Community
Australia
852 Posts
 Posted 12/11/2017  03:32 am  Show Profile   Bookmark this reply Add nealeffendi to your friends list Get a Link to this Reply
The frauds on ebay get away with their scams because ebay doesn't do much to police their website; half the buyers know nothing about what they are buying and the police do little or nothing to protect the public. There are supposed to be laws making it illegal to deface coins (shed job errors) or to pass counterfeit currency and theses are crimes (felonies) with share a cell with Bubba penalties. I can find 50 examples in an hour of defaced or fake coins being sold as genuine and the same sellers are there week after week so they cannot claim innocence. So why don't the cops bust these scammers who rip off millions of dollars from victims every year.
Valued Member
squaremealroundplate's Avatar
Australia
185 Posts
 Posted 12/11/2017  06:08 am  Show Profile   Bookmark this reply Add squaremealroundplate to your friends list Get a Link to this Reply

Ok, so we know only too well what has been going on with Counterfeit and Fake (C/F) pre-decimal coins on ebay for years. I have very nice replicas of 1925,1937 and 1954 pennies, along with a few replica 1930 pennies which I bought on ebay being fully aware as to what I was doing. Great novelty items, that's all they are.

However, can we, or should we, rely on the Police to oversee the 1000's of dodgy, C/F forged coins being openly sold on, with the clear, almost encouraged, knowledge, of ebay?

I'd like to, again, suggest a separate section, as highlighted in my earlier post, within ACC's forum exclusively only for Counterfeit and Fake pre-decimal coins.

There can't be anything more satisfying then to immediately post the ID of any seller of C/F pre-decimal coins, and then emailing the seller through ebay and " inviting " him/her to have a read of the ACC forum's section of Counterfeit and Fake pre-decimal coins.

The coin(s) in question could be verified as being C/F by 3 forum members before any action can be taken.
When we have numerous dodgy sellers' ID's - which wouldn't take too long - we could notify the Queensland online fraud squad and invite them to read the ACC's C/F pre-decimal coin forum. Then notify ebay, and highlight what we have been able to accumulate in the way of dodgy sellers' ID's, along with all the item numbers, and invite them, too, to read the ACC's C/F forum, pointing out to them that we have notified the Police. ebay will be forced to act on the dodgy sellers.

I maintain that it is virtually up to us Australians, to start eradicating the growing scurge of C/F pre-decimal coins being sold, and allowed to be sold, on the deafened ebay.

I think our combined efforts, along with constantly notifying ebay in full detail of each newly found dodgy sellers will force ebay to act on our behalf. I'm even willing to go as far as deliberately buying some of the C/F coins and not paying for them.... An opportunity to leave well worded negative feedback(s)

Your thoughts, please.
Valued Member
CoinOS's Avatar
269 Posts
 Posted 01/08/2018  08:24 am  Show Profile   Bookmark this reply Add CoinOS to your friends list Get a Link to this Reply
The sooner there is a place to expose ebay mischief the better.

There is nothing wrong with selling an altered date 1930 penny if the seller calls it an altered date 1930 penny.

There is nothing illegal in selling a copy or token as long as the seller clearly calls it a copy or token.

There is something wrong with selling a Chinese copy coin presented as genuine for hundreds of times it's purchase price.

Some real coins do look suspect and there should be safeguards in place to stop honest sellers being hung out to dry by mistake.

I am in Australia, Melbourne (and Adelaide) and I grade coins.


Since 1967.
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