Filter diameter is 40mm (Canon rangefinder filters fit). Total lens length is 40.5mm. No 38 engraved on bottom side of aperture ring (see image). Glasses are NOT scratched, but there is extensive coating wear and heavy hazing inside a few tiny patches of fungus as well! Glasses in poor condition, but serviceable.
The item "Dallmeyer PENTAC F=4'' F/2.9 fast 100mm F2.9 Large Format Lens VERY RARE" is in sale since Monday, March 23, 2020. This item is in the category "Cameras & Photography\Lenses & Filters\Lenses". The seller is "classic_photography_uk" and is located in Kent. This item can be shipped worldwide.