medicine bow, wy monday 4.12.99 dear persons: i have nearly a dozen nikkor lenses, all manual focus, how can i determine when they were made and what series they are? with firearms, the serial numbers can be correlated with year of manufacture and what series/model modification the rifle might be - is this true of nikkor lenses? any help would be greatly appreciated. best regards, scott scott e fisher jr, p o box #320, medicine bow, wy 82329 [EMAIL PROTECTED]