Roosie Pros - 1955-D RPM?

Thanks for the response, MorgansRmine. You're probably right. My first impression was MD, but there are so many Lincoln RPM's that look like MD to me, that I didn't want to just chalk it up. Especially on a '55 silver!

There is a spot on the inside lower right of the D that made me wonder, too.

Thanks MRM, just wanted to be sure. Like I said earlier, there are Lincoln RPM's that look to me like MD, and I don't have much experience with Roosies. Thanks for your help.

coop, you are the man! You always come through!

You should bundle your gazillion links into a tutorial. Or have you done that already? Do we have access to this library of coingress?

The basic rules for looking at repunched mintmarks are the same regardless of the series of coin you are looking at. They occur in exactly the same manner whether it be on a Lincoln Cent or a $20 gold piece.

The only thing I can think of that somewhat differs between cents and other series is that on dimes and quarters, especially the silver years, Machine Doubling on the mintmark seems to be far more prevalent than with other coins. Given that, the following is something to be especially aware of in silver coinage, but applies to all coins...

When looking at something that could be am RPM, the first thing to check is whether it's Machine Doubling. Machine Doubling on a mintmark will always be flattened, there will be NO notching (splits in the corners) and the "doubling" will always eat away at the normal shape and size of a mintmark. So...if the mintmark is a bit thinner than normal, or if the "doubling" does not cause notching on the mintmark, then you very likely have a case of Machine Doubling.

Incidently, Machine Doubling can - and often does - occur only on the mintmark. Do not let the fact that ONLY the mintmark shows doubling convince you in any way of believing you have a repunched mintmark. You still have to follow the basic rules of differentiating Machine Doubling from collectible doubling.

They are rather easy to tell apart if you thik of it as 'taking away' from a normal mintmark to make the doubling from nothing versus an extra punching.

Mrcoinman - Be aware that the mintmark closeups that MorgansRmine posted are indeed images of an RPM with split serifs, but this is a different coin from the one posted by Scooby Due, which shows no signs of being an RPM. My responses here are to the original starter of the thread, Scooby Due, who posted a coin that does not show signs of being an RPM by the images provided.