I have come into a small lot of vintage .45 acp ammunition. There are several headstamps available: PC CO 18, REM-UMC 18, WCC 41. I have fired a 7 rnd magazine previously with zero malfunctions- All round fed, ignited and ejected. Ammo has been bulk stored in a sealed ammo can so no boxes are available. Some tarnish, but not much. At the buyers preference the rounds can be cleaned up and polished or sold in their current state. $30 for a cleaned and polished 7 rnd package (enough to display with your period 1911) thanks, russ Will Post Pics After Work.