• Very nice Vivitar wide angle lens with 58 mm thread, so it doesn’t require rare or expensive parts.
• It is probably from 1977 and is 24 mm and f/2.8 auto wide angle lens with a NIkon F mount. Serial number 37724163.
• (37 being manufacturers code for Tokina) third digit is year of manufacture 7, next two digits week of the year
• Non-AI Nikon F mount with the aperture prong typical of the 1970s.
• Has proper Vivitar lens cap on one side and proper NIkon cap on Mount side.