You are not limited the the ‘Crons, you can also put in Summilux, Elmar, Elmarit. The family name and focal length will give you the list of available Leica lenses in the database like so: There are 131 records for Leica Summicron 35mm serial numbers Elmarit 28mm serial numbers & others Under family, put in “Summicron” and under focal length put in the focal length desired like “35mm”.
If you are looking for the serial numbers of a particular Leica lens, like the Summicron 35mm serial numbers, here’s how to do it.