Junior Lieutenant Collar Tab.

[CtahhR]

Here is a (소위) Junior Lieutenant Collar tab. Made out of light aluminium with the "usual" Korean pinback. Surprisingly not made to be sewn on. Quick promotion or short term job? Who knows?

[Esteban_cool]

Maybe it was used on a field/work uniform, or civilian clothes...

[CtahhR]

It is possible. It is of such light aluminium that I think it would easy set alight if close to a naked flame.

[GabrielMk3]

I've seen this type of ranks being attached to people's left arms. Just never seen exactly this type.

Especially at the recent KCU celebrations...

[CtahhR]

It makes sense being a "tab" for the arm rather than the neck, I'd have no problem having it on a collar but someone a foot shorter may be uncomfortable.