Vintage US Army Airborne Special Forces and 50 similar items

There are three of them, about 11/16" in diameter with loop shanks. They have light wear to the front being little flakes on the rim; the scans are high resolution and you can clearly see. There are no markings but they have to be gold-plated (and thickly plated at that), they are of top quality manufacture. There is base metal underneath. I wish I could tell you more but I was unable to find any others for sale, nor for that matter any similar ones with various searches. I wouldn't expect to find these on many uniforms but they do have light wear and nobody goes to that many banquets so I just don't know. If I am allowed a shot in the dark I am going to guess sixties after-market made in Japan or Hong Kong, tailor shop type items. Wherever they are from, please note the small nips out of the plating on the rims, and then I will say that you cannot be disappointed because these are very sharp little insignia buttons and apparently hard to find.