Help--Mystery badges

[crabnox]

i can usually ID badges that i find, but these 3 recent purchases have me completely stumped. they are silver & enamel. construction is a bit less sophisticated than what i'd expect from the US or western europe. there are no hallmarks. they seem to be of wwii vintage give or take. each about 1" to a side. if anybody has any thoughts, it would be greatly appreciated! thank you.

[Terry Webb]

Can't say for sure, but they remind me of RAF Mess Dress rank badges. Please don't take this as gospel.

Terry