|
|
This page may contain links that result in small commissions to keep this free site up and running.
Welcome Guest! Register Now! It's free!Registering will remove the anchor ads and vignette (between pages) ads.
sel_69l's Last 20 Posts
| 2024 Mintage Figures
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
 Posted Yesterday 11:12 pm
|
The Royal Australian Mint usually publishes full mintage figures sometimes as much as three years after the current date,
because they may use perfectly good unused working dies from previous years, rather than destroying them.
Thus, a coin bearing a particular date could have the possibility of being struck in any of the previous three years.
It becomes necessary to glean the total mintage of a particular type and date, by examining the total mintage for that coin over three mint reports, but full and accurate mintage information can still be found.
Nevertheless, still somewhat frustrating the Australian collector, unless some detective work is done. |
| | Forum: Main Coin Forum |
|
| TPG, XRF And Ungradable Details
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
Posted Yesterday 10:59 pm
|
As far as I know, the TPG's never provide any details of any scientific examinations on any coin that they may have done.
It would be good if they did do this, at the very least on what methods of non destructive testing they use, and under what circumstances they feel that these methods may be justified to use.
In not doing so, it seems to me that the TPG industry may be somewhat negligent.
It reassuring to know that at least some bullion dealers have XRF backup, so why not TPG's ?
Just knowing that a coin has been slabbed may be OK for authentication coins that have a potential market value (say) below $2,000,
but what about a coin that has a potential value of $50,000, and what particular method(s) were used?
Quite independently from TPG grading,
I have has a coin's surface examined under an electron microscope and a 50,000 volt non destructive electron beam metal analysis carried out at several points under a high vacuum, whilst under examination in the microscope's chamber. |
| | Forum: Third Party Coin Grading (TPG): PCGS, NGC, ANACS, ICG, ETC. |
| |
| Regarding New Tarrifs
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
Posted 05/04/2025 8:20 pm
|
Do you want the bad or good news first? 
Bad:
It's going to be more difficult if buying numismatic items from genuine dealers and auction houses outside the US. 
Good:
It's going to be much more difficult for China to export fake coin products to the US. 
Overall effect:
American collectors will tend to stick to more to American dealers and US coins. |
| | Forum: Canadian Coin Grading |
| |
| Gut Feeling For Silver.
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
Posted 05/04/2025 12:33 am
|
I have only ever bought scrap silver coins at below ASW bullion price, but I also tend to shy away when there is an upward spike in the price that is above the general trend line.
As such, my buying opportunities are few, but that has been my strategy for the last 40 years.
Haven't sold any of them, but I do remember a time when spot silver was below $5 per ounce.
Tend to do the same with numismatic coins generally, especially ancients. Lots of prior price research required, before deciding on a purchase. |
| | Forum: Precious Metals and Bullion - Gold, Silver, Copper, Platinum |
| |
| Gold Coming Down To Earth ?
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
Posted 05/01/2025 11:59 am
|
Who is continuing to buy gold on the World market just now ?
? Is China trying to protect itself against Trump tariffs ?
--------------------------------------------------------------------------------------------------------------------------------------------------
Warning for gold stackers:- be more than ever on the lookout for very deceiving bars and coins with a tungsten core. |
| | Forum: Precious Metals and Bullion - Gold, Silver, Copper, Platinum |
| |
| Has Anyone Used This Size Loupe -Extra Large Fold Away Loupe
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
Posted 04/26/2025 11:48 pm
|
I use a 20x loupe of the type pictured for examining the internal flaws in gemstones. It has a very narrow depth of field, and is very difficult to examine the surface of coins, but with an acquired skill, it can be done. Very useful in examining the surface texture of suspected fake coins.
I also use a 10x eye loupe of the same standard power that third party graders use. It has a much wider depth of field. I use this separately, but in conjunction with 4X normal design twin lens glasses, which provide for easy binocular vision. I use these in combination for grading coins for myself.
I find that point source light is much easier, rather than flood lighting. Direct sunlight is by far and away the best for coin grading, but care is needed to avoid shadows. |
| | Forum: Supplies, Books, Reference, Software, etc |
| |
| Trio Of Coins Before And After Acetone Soak
|
|
sel_69l
Bedrock of the Community
Australia
21638 Posts |
Posted 04/25/2025 7:47 pm
|
Acetone will remove organic fatty acids, such as meat fats but only if they are removed immediately after to exposure to the coin.
Fingerprints are in this category.
If not removed immediately, they will react with the metal, to form complex organic salts, which become an irremovable part of the coin's surface.
Acetone is unable to remove this sort of staining.
Acetone will not remove inorganic substances, such as oxides sulfides, etc., which can be part of acquired toning, ugly or beautiful. |
| | Forum: US Modern Coins |
| |
|
| Coin Community Forum |
© 2005 - 2025 Coin Community Forums |
| It took 1.42 seconds to rattle this change. |
 |
|
