1952S S/S Northwest???

[jstraw13]

?1952S-1MM-002? All I can see is a second piece of a curve, almost like the 1950S-1MM-004 without the upper serif.

[Bob P]

Mint Mark placement is wrong for RPM-002. Off hand, I would say RPM-009.

[jstraw13]

Thanks Bob. What information are you basing the MM placement on? Is there a site or book that discusses this? I have seen MMs in the Lincoln Series all over the place... low, high, left and right. Since they were punched separately, I can understand that, but how was the location of MM placement determined?

[Bob P]

Jon,
For those RPMs that we don't have on the site, I use 'The RPM book Second edition" What I mean by mintmark placement is where on the coin this particular variety is. If it's close to the 9 of the date, and your similar looking RPM is under the 5, then they can't be the same die. Remember that all of a given RPM will be in the same location since one particular die struck them all. You can not have the same RPM in different locations under the date. That's all there is to it really.

[jstraw13]

Thanks very much, Bob.