1988d rpm?

[Guest]

tell me what you think

[fugnchill]

amazing pictures but still bounce. I want to stay with it but there is some hesitance.....Let's wait for the pro's.

Lestrrr

[jcuve]

Nice pictures...but probably more MDD or DDD

So common on late to mid eighties and early nineties Lincoln cents - if you look hard enough it's hard to find a Lincoln cent from that period that doesn't have MDD (a touch of DDD) and or a plating problem where the zinc is exposed next to a design element.

[fugnchill]

But Jcuve, have you noticed that plating happens toward the rim? We have the slide on the East (toward the rim) but the detail to the West? Is it bounce?

Lestrrr

[kloccwork419]

I just figured out your now the Wheat Cents we have here normaly. I knew something was up when you kept asking about RPMs. Wheat Cents knows everything about them usually..lol

[trails]

One must remember that when dealing with machine doubling an angular (angled from the design shape) "doubling" (actually flatting would be a better word) can happen. This is seen in this example. On the other hand, since die deterioration doubling is caused by metal flow, the doubling appears more consistent with the designs shape.

BJ Neff

[jcuve]

But Jcuve, have you noticed that plating happens toward the rim? We have the slide on the East (toward the rim) but the detail to the West? Is it bounce?

Lestrrr

I wasn't suggesting that this particular example had a plating problem. I was just mentioning how one of the three (MDD, DDD & plating pullback) are commonly found. I have should have been clearer and mentioned that those three types of damage are often misinterpreted as DD (especially on eBay.)

In the above example the only thing I see is MDD to the west. I wasn't sure if the receding mound to the east was DDD but it apparently isn't.

And yes I have noticed that when the plating is pulled back it typical is near the rim being pulled away from the center...

Here are some examples I just shot and collaged together:

[wheatcents]

i know that the D shape to the east is probably a die slip what im referring to as the D/D is to the west now since there is no continuation on the inside of the main D does that mean its a slip as well?

[jcuve]

RPMs aren't my strong suit. I have a few, I look for them but I am still getting use to identifying them. Yours, to me, looks like it shows MDD west because it is flat and uneven like the die moved and (smeared/shaved off) the mintmark slightly.

PM Bob and ask him to chime in he can give the final word.

[jcuve]

One must remember that when dealing with machine doubling an angular (angled from the design shape) "doubling" (actually flatting would be a better word) can happen. This is seen in this example. On the other hand, since die deterioration doubling is caused by metal flow, the doubling appears more consistent with the designs shape.

BJ Neff

BJ I always like your technical answers.

[trails]

Thanks, but sometimes I do get carried away with an explanation.

Now, what is a "die slip"?

BJ Neff

[wheatcents]

where the plating is pulled back isnt that from the die slipping or something im not up on terms =)