It looks like it took a lot of time and intention to me too, guppie1160. My uncle
speculates the coin was picked up in Europe during WWII and either there (like trench art) or later here in the US, was carefully hammered or machine lathed to preserve a relatively even edge/rim.
Being new to all of this I wondered if that was a fad at some time in the coin community?
Thanks to everyone for their input!!Rubyfruit38