I acquired a box of items from a WW2 USAAF veteran that included US eagle uniform buttons.
Almost none were matching except in that they belonged to one man. No photos, sorry.
. Here is a list of their manufacturers as a reference :
Coat Buttons : Pocket Buttons:
Makers marks include : Makers marks include:
City Button works, NY City Button Works, NY
Superior Quality N.S. Meyer, NY
Leon D. Evans & Co., Mass. Fine Quality
Waterbury Button Co., Conn. The Art Metal Works, Newark, NJ
Dusenberry & Schwab, I.N.