Which country is this (M)82A1 P.D. fuze

[Antoon]

From which country is this (M)82A1 P.D. Fuze?

It is screwed on a 60 mm Smoke WP mortar round, like the US M302.

No markings on the mortar shell.

Greetings - Antoon

 

[sgdbdr]

Probably Japan or Korea in my opinion. I can't see other options.