xia_ke
Established
I have a Red Dial Elmar that came with a IIIg that dates to 1957. I've had a few Elmars pass through my hands and the serial number has always been on the aperture adjustment ring. However, this example has no serial number there. The ring shows no signs of having the number warn or filed off, the lens is in excellent condition. Is there any other place where the serial number would have been engraved on this version?