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Can Someone Please Give Me Some Info On This Aus 20 Cent Piece

 
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Author Previous TopicReplies: 15 / Views: 493Next Topic  
New Member

Australia
4 Posts
 Posted 12/05/2020  12:12 am Show Profile   Bookmark this topic Add hbcx1 to your friends list Get a Link to this Message
I came across this 1971 piece. Does anyone know what the indents on it could have come from? could it have been from when it was made or ?
Valued Member
Australia
321 Posts
 Posted 12/05/2020  02:58 am  Show Profile   Bookmark this reply Add echidna to your friends list Get a Link to this Reply
Reverse pic would be helpfull.
New Member
Australia
4 Posts
 Posted 12/05/2020  03:37 am  Show Profile   Bookmark this reply Add hbcx1 to your friends list Get a Link to this Reply

New Member
Australia
4 Posts
 Posted 12/05/2020  03:38 am  Show Profile   Bookmark this reply Add hbcx1 to your friends list Get a Link to this Reply
Sorry about the pics, I'm struggling with the 300kb upload things.

its just a standard 20 cent piece with the platapus
Bedrock of the Community
United States
37206 Posts
 Posted 12/05/2020  04:43 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
to CCF. It is some sort of PMD. What was used to make the damage,could be anything.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
Bedrock of the Community
Australia
17892 Posts
 Posted 12/05/2020  05:37 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Spring loaded click punch indents.

Click punches are used in sheet metal working to accurately locate the start of a hole to be drilled.
Moderator
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United States
94433 Posts
 Posted 12/05/2020  11:59 pm  Show Profile   Bookmark this reply Add jbuck to your friends list Get a Link to this Reply
to the Community!

Your post was moved to the appropriate forum for the proper attention.
New Member
Australia
4 Posts
 Posted 12/06/2020  05:29 am  Show Profile   Bookmark this reply Add hbcx1 to your friends list Get a Link to this Reply
So is the conclusion defiantly the spring punch or ?
I'm confused
Valued Member
Australia
112 Posts
 Posted 12/06/2020  5:47 pm  Show Profile   Bookmark this reply Add petef7365 to your friends list Get a Link to this Reply
Appears to be PMD. All holes are the same size...

It looks like moon craters.
Valued Member
Australia
489 Posts
 Posted 12/06/2020  9:32 pm  Show Profile   Bookmark this reply Add David Graham to your friends list Get a Link to this Reply
@petef7365

It wasn't caused during minting. Unless you speak to the person who made the marks, you will probably never know for certain what caused it. I cannot see such marks adding historical value to the coin so in effect, it is a damaged coin worth no more than face value being 20c.
Pillar of the Community
Australia
924 Posts
 Posted 12/06/2020  9:33 pm  Show Profile   Check ryurazu's eBay Listings Bookmark this reply Add ryurazu to your friends list Get a Link to this Reply
i wonder that people are doing on these coins, testing out on cheap metal? so that they dont ruin actual sheet metal?
Valued Member
Australia
489 Posts
 Posted 12/06/2020  10:53 pm  Show Profile   Bookmark this reply Add David Graham to your friends list Get a Link to this Reply

Quote:

i wonder that people are doing on these coins, testing out on cheap metal? so that they dont ruin actual sheet metal?


Nah. Just overly active people. Once had a young guy in the workshop at work who just couldn't keep still. If there was a drill handy while sitting at the work bench he'd drill holes in the bench just to be doing something. I can just imagine him using a spring punch on a coin because there was a punch and coin handy. He ended up joining the Navy which was the best thing for his excess energy.
Bedrock of the Community
Australia
17892 Posts
 Posted 12/07/2020  05:32 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Punch marking was the way that the ancients tested their gold and silver coins. Chinese chop marks on silver dollar sized coins are a more modern example.

Just deliberate post mint damage in this case.
Valued Member
Australia
165 Posts
 Posted 12/21/2020  8:53 pm  Show Profile   Bookmark this reply Add Chm8Tin2 to your friends list Get a Link to this Reply
interesting fine....hbcx1 ...

so with my little crator ... it looks like I'm with you ?
Pillar of the Community
Australia
1699 Posts
Valued Member
Australia
165 Posts
 Posted 12/23/2020  9:53 pm  Show Profile   Bookmark this reply Add Chm8Tin2 to your friends list Get a Link to this Reply
thanks ... mr t ...
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