My thanks to all of you for your replies!

Charlie;

Here's a photo of Saff Sgt. Thomas Loughnan, USAF, taken when attached to the Armed Services Police in New York City, about 1959. The series of photographs of this fellow were published in Chic Gaylord's, HANDGUNNERS GUIDE c.1960 I have the identical "patent leather" MP/AP Sam Browne rig in the Bell Charter Oak Company holster morgue, along with many other MP/AP related items from WWII through Vietnam eras. I thought you might enjoy the photo, which shows the equipments we've been discussing rather well.