Jefferson RPM's

I just have a couple I bought from a coin show years ago. One is AN EDS example and both are BU. But Lincoln RPMs have always been my cup of tea.

It just hit me, these are not Jefferson's.

I was there at one time. I just looked at RPMs and then it hit me. The doubling on a doubled die is similar to a RPM. So if I can spot an RPM, shy not try doubled dies and now I look for everything on every coin. I always check the date/mint mark area first and then according to what I have I know what doubling could be present on that year. Not just known doubling, but what else might be there. If it doesn't jump out at me, I move on to the next coin.