Just for interest, I acquired these with an 81mm mortar, estate sale. Believed to be original paint. Heavily coated in lacquer, chipping, poor appearance but well marked on the fuze, driving bands, and cases. No dents and crimped in projectiles. One fuze marked "Lot 2815, T.E.I. 8-44", the other similar but dated 1943. The red/green fuze is unmarked. Cases marked MK 1, 5-42, 10-42, and 10-42. One case has a missing primer, and looking into it can see it is in fact a hollow based projectile. Not pretty, but the first I have that are crimped and of the self destruct type. My plans are to strip off the lacquer, and leave the projectiles as is.