2 of them are dated 53 and were reworked in 1990 the other is 54 dated and reworked in the 80's. i told a friend of mine i would sell him a 53 when i found the 52 which he has.when we got them we did not know 52 was hard to find so i let him have it when we bought them. i plan on ordering another cz82 next monday when sog has them on their one day sale for $159. at that price if i got one with a bad finish i could try my hand at duracoat. all of them are good shooters but the cz52's seem to shoot low for me.