plastic and bakelite sew-through buttons

[JohnK83882]

Assume the olive dram rimless ones are around Vietnam & later and the rest being roughly 30s to 50s but would appreciate any more information. 

 

[JohnK83882]

Somebody must have some information on sew-through buttons. I assume the government regs probably just dictate button size and color and whoever could fill the contract made whatever they could. Then you have civilian made sets for soldiers found in sewing kits like this. 

 

[JohnK83882]

Another WW2 era consumer button set. Nice to have the types labeled. Found this pic on etzy.