Struckthrough Die Cap?

coop · Expert Member

So you would hate this then?

(coin not mine, just for educational purposes)

mikediamond · Advanced Member

Why would I hate it? It's a lovely coin. It's a broadstrike with a first-strike brockage of the reverse design on the obverse face.

coop · Expert Member

I think my favorite errors would be the double struck ones. Seeing the image doubled on the coin is a nice view to me.

Also wrong planchets is another favorite.

Mike: It would be interesting to see your collection?

Dick · Expert Member

Drool, Drool! Sorry, about drooling, but some things I just love the sight of!
Dick

eagames · Expert Member

Great errors!

I'm wondering about the bicentenial. It has a few things that make me question it being real. The problem I see is where the second strike ends it did not obliterate the drumstick and the edge of the die seems incomplete near LLAR and did not obliterate the stars near the A of dollar. I'm not saying I am sure it was fake but it seems similar to the fake silver off center quarters so I question it. What do you guys think? I'd like to see what experts like Mike or Fred would say about this one.

Interesting thread on CU about some double struck silver quarters that Fred W. said are fake:
http://forums.collectors.com/messageview.cfm?catid=26&threadid=675821&highlight_key=y&keyword1=double%20struck&keyword2=quarter

mikediamond · Advanced Member

I see no reason to question the authenticity of the double-struck quarter.

eagames · Expert Member

Mike,

How about where the A of dollar on the second strike meets the star on the first strike. Wouldn't the die of the second strike (lower section of the A and edge) disturb the star?

It sure seems similar to those fake silver ones in the link, did you check out the link?

coop · Expert Member

It could be that because of a partial strike, the coin moved and prevented parts of the devices to touch into the die like a normal strike would have. On the proof Cent above that image you also see where one area you can see part of the edge of the die and the opposite edge not forming the devices fully.
On some clashes the area affected is usually a part of the area touching and not all of the fields distorting. Because something was not normal may have cause the dies to strike without an even strike?

eagames · Expert Member

Coop,

I guess it could be that it moved.

Anyway.... if you look at the silver ones in the link I would have thought they were OK until Fred pointed out what they were. Wink

Yes that proof cent is an amazing one! To make that extra hairline would require a lot of angle. The amazing thing is how it got out of the mint since it wouldn't fit in the proof set plastic holder. I trust that it could because I had an 83 proof set that had an extra dime in it! The dime wasn't in a hole, it was wedged in the back of the holder and the holder was deformed by it. Years ago I sold that set but wish I kept it as an example of "anything can happen". Wink

Dick · Expert Member

My question is: "why is there NOT a rim thru the obv, in the area questioned by ED, and, look at the "A" in uarter. The "QU" is missing, and there should be remnants of some sort, from the "U".. Part of the "A" is missing, (the cross-bar), looks like., up by the star. I would be a bit sceptical, too.
Dick"

mikediamond · Advanced Member

This is not unexpected. The outer periphery of the design often doesn't strike up as well due to the built-in convexity of the die face, a convexity that is greatest along the outer margin of the die face.

Also the completeness of the second strike will vary with fluctuations in ram pressure and minimum die clearance.

There is nothing in this photo that raises the alarm call.

Dick · Expert Member

Ed, I guess we can accept that quarter as genuine. thanks to Mike, it looks like there is nothing to worry about. That is until the next one comes along!
Dick

mikediamond · Advanced Member

eagames · Expert Member

Mike, thanks for the explanation. Smile

The convexity of the die seems more extreme than I expected.

It's tough to imagine when a coin is struck "what gives". A convex die striking a planchet seems like the planchet must spring back to being flat as the die backs off. (I'm assuming the dies are so hard they don't change shape much durring each strike) so the planchet does almost all of the compression and bounce back. Also I assume the die does the same thing to a smaller extent, that being repeated is one reason that dies eventually crack. Imagine how this would look if you could see a slow motion of a cross section of a die striking a planchet, the convex die springing a little and the planchet being dished durring the strike and springing back to near flatness as the hammer die backs away. I guess we won't ever be able to see that Wink