I recently came across a decent Summicron 35mm lens that looks very much like Germany-made Summicron 35 V4, but the serial number range does not add up. So I'm looking for the community help confirming the exact version.
Serial number of the item in question: 3456850
Serial number ranges from public sources (kenrockwell, reddotcamera) are close, but not quite:
3453071 - 3454070 Summicron-M 3.5 cm 1:2 (black.ELW) 1987
3456871 - 3457370 Summicron-M 3.5 cm 1:2 (black) 1988
Reddotcamera Serial Number lookup tool identifies this one as Elmarit-M 21mm f/2.8, build in the year 1988, which is really weird.
Any advice will be very helpful!