Double Struck 1981 20c

markn · April 05, 2016, 07:47:33 PM

The double struck part is so far out of the plane of the coin I couldn't get it to focus on the whole coin.

robbiegal · April 05, 2016, 07:50:04 PM

we really do need a 'like' button !!!

trout · April 05, 2016, 07:50:49 PM

Nice one Mark :good:

Unicorn · April 05, 2016, 07:53:01 PM

How cool is that!!!

What do you think went on with the straight line on the right of the obverse? Some sort of ejection issue perhaps?

ausjack · April 05, 2016, 07:54:37 PM

wow, very nice coin Mark :good:

trout · April 05, 2016, 07:56:39 PM

Quote from: 'Unicorn' pid='86673' dateline='1459851781'How cool is that!!!

What do you think went on with the straight line on the right of the obverse? Some sort of ejection issue perhaps?

I would hazard a guess that the coin was forced under part of the press when the second strike occurred .

gnome · April 05, 2016, 08:01:49 PM

Nice

markn · April 05, 2016, 08:04:26 PM

Quote from: 'Unicorn' pid='86673' dateline='1459851781'How cool is that!!!

What do you think went on with the straight line on the right of the obverse? Some sort of ejection issue perhaps?

Either damaged getting jammed under some part of the press, perhaps a feeder finger? Or caused by a machine operator chiselling the coin out of the press.

Unicorn · April 05, 2016, 08:27:21 PM

It's really interesting how the reverse bulge appears void of design whilst the obverse bulge is very clearly struck. Maybe a blank planchet in the press under the reverse?

Such an interesting error, it's like a murder mystery.

markn · April 05, 2016, 08:32:43 PM

Quote from: 'Unicorn' pid='86684' dateline='1459853841'It's really interesting how the reverse bulge appears void of design whilst the obverse bulge is very clearly struck. Maybe a blank planchet in the press under the reverse?

Such an interesting error, it's like a murder mystery.

Yes almost certainly struck against a blank. Somewhere out there is a matching indent error with a partial blockage in the indent.

r9453 · April 06, 2016, 06:28:09 AM

Quote from: 'markn' pid='86679' dateline='1459852466'Or caused by a machine operator chiselling the coin out of the press.

At that point the operator would normally put it in some kind of reject bin for recycling?

markn · April 06, 2016, 07:37:00 AM

Quote from: 'r9453' pid='86707' dateline='1459889889'
Quote from: 'markn' pid='86679' dateline='1459852466'Or caused by a machine operator chiselling the coin out of the press.

At that point the operator would normally put it in some kind of reject bin for recycling?

You'd think that but 1981 was a very different time to now.

Unicorn · April 06, 2016, 07:50:27 AM

Quote from: 'markn' pid='86709' dateline='1459894020'You'd think that but 1981 was a very different time to now.

Now is certainly a different time to 8080s, CP/M and S-100 Buses!

gnome · April 06, 2016, 11:54:58 AM

3 Different mints in play as well wasn't there

r9453 · April 06, 2016, 12:28:03 PM

Quote from: 'gnome' pid='86729' dateline='1459909498'3 Different mints in play as well wasn't there

Good point, many millions minted at each and a lot of operators.