quick question

[Archimedes]

Another one that often causes hilarity, is a 'talc'. if anyone can tell me where the military meaning came from, I'd be grateful.

We used talcs with the old mortar boards. They were sheets of heavy tracing paper (a bit like greaseproof paper) with a circular grid on them. After the first round, the talc was put on the target and aligned for OT direction to be ready for corrections. Perhaps talc is a generic name for this heavy tracing paper and could also be used for map overlays etc

[trellheim]

Oh, I know what they are , we use them for TEWTs and so on. it's the name I was wondering about, I know it existed WWII