I've got a neat early mod 39. It has an interesting history. It was used in a bank robbery in a town where one of my uncles was a policeman. He was given the gun and then presented it to my father who was headed to Vietnam. So this would've been early 64, he carried it is first tour there when he was an advisor mid 64-mid 65. I still have the pistol and have fired thousands of rounds thru it myself. He also had a "cheap charlie" holster rig made up while there (sadly my mom threw it out in the 70s!) He also carried it in an m1911 holster which caused some wear to the alloy frame.
I'll take a pic of it. serial #31615. Any other info would be great to hear!