| Author |
 Replies: 13 / Views: 2,154 |
|
|
Pillar of the Community
United States
3330 Posts |
I believe this is a tapered planchet. See weakness @ 6k to 9k Obverse and 9k to 12 k Reverse. Weight 2.81 g. Thickness in weak area is 0.1 mm less. See reference here: http://www.error-ref.com/?s=tapered+planchetThis reference indicates the 1950s were plagued with these, but it is the first I have found.   Edited by Pete2226
02/21/2016 3:39 pm
|
|
|
|
Pillar of the Community
United States
2824 Posts |
very cool find  Nice example |
|
Valued Member
United States
334 Posts |
Oh crap that is a variety Also. I need to pay more attention.. There is alot to learn. Great find.. |
|
Pillar of the Community
United States
2824 Posts |
Tommyjet this would be a Planchet Error so it is not a variety but it is a very cool collectable error |
|
Valued Member
United States
334 Posts |
|
|
Bedrock of the Community
United States
62064 Posts |
It would be nice to the edge area where the devices are missing. It looks like it might be a thinned planchet. Good eyes for catching that.
|
|
Rest in Peace
United States
17900 Posts |
I think I've tossed a few that look like that into the "I hate you" pile. Oopps.
|
|
Valued Member
United States
252 Posts |
Are these common because after I read this post I started going back through my wheat cents and found A 1958.weight is 2.8 grams and has a weak area.
|
|
Pillar of the Community
United States
3656 Posts |
Hi, Hoping I am not asking too stupid a question. When I look at your picture and see the missing devices, I would have thought that is the Grease Filled Die. Could you just tell from holding it that it was lighter in weight? I have had some that I could tell were lighter in weight and just assumed it was from wear. Thanks Edited by CoinCents
02/23/2016 12:11 am
|
|
Pillar of the Community
United States
3644 Posts |
Probably the first hint CC was the weakness on both sides in same area but see what pete noticed first-and definitely a nice find pete Edited by Slamnbass
02/23/2016 12:20 am
|
|
Bedrock of the Community
United States
62064 Posts |
If it was a Struck Through Grease, the rim would still have been formed:  Note that just because the die was almost totally filled, the rim is strong. But on a thinned/tapered planchet, the metal for the thickness is just not there, so the die can't strike up the rim in that area.  Note full rim around the coin except where the thickness was not there? Even a missing cladding can leave the design weak during the strike:  Even the thinness of a missing cladding can alter the strike because the metal was not there. |
|
Valued Member
United States
252 Posts |
My rim looks fine but the lib are weak and on the reverse part of the wheat stalk and part of the O,the p,l,and u are weak and part of the penny is thinner.so would that still be a tapered planchet.
|
|
Bedrock of the Community
United States
62064 Posts |
Yes. The missing thickness on the small did not allow the die to get the thickness needed for a normal strike. The roundness you are seeing on that area on your coin was created during the setup process that makes the rims base foundation to happen. It is part of the planchet process.  The stock material punches out blanks.  The blanks are run through a machine that reduces in size of diameter that makes the blank roll upward on the edge of the coin turning the blank (type 1) into a planchet (type 2)  Then the coin is struck. Copper planchets are plated, just zincolns are plated)  |
|
Pillar of the Community
 United States
3330 Posts |
Quote:
but see what pete noticed first The first thing I noticed was missing devices and immediately thought it might be grease filled. Then I noticed the extent of the missing devices and also the lack of a formed rim, which I thought was curious. Then I noticed the same thing on the Reverse. So I weighed it and found it underweight and then I measured the thickness in several places. I found the affected area to be 0.1 mm thinner than the unaffected areas. When I checked error-ref for a tapered planchet, I found it described my coin! |
| |
Replies: 13 / Views: 2,154 |
|
Posted 02/21/2016 4:32 pm
