This is a rare prewar FED telephoto lens, 100mm f:6.3. The lens is clean and smooth mechanically, the glass is also clean.
The lens was made in the late 1930's by the FED commune. It is exceptionally well finished and comes with metal rear and front caps. The case is made of cardboard covered by fabric.
(source: www.fedka.com)
At least two series were made with two pins (written 1st in the following list) or without (written 2nd). Probably to help the owner to screw or unscrew the lens...
Recorded serial numbers:
x----------1st----DVD coll. (proto).
No #----1st------Jacques M. coll.
30626----1st-----AlexanderK
30805----1st-----okynek
30968----1st-----seen on eBay.
31213----id-----id.
31505----id-----id.
31520----2nd-----AlexanderK
31549----2nd-----uwitte coll.
31725----1st-----David Tomlinson
31737----1st-----Jim McGee
32058----id-----id.
33056----?------Aidas collection.
33886----1st-----Jim McGee
33997----1st-----okynek
34069---1st----napchop (Mike Haley)
34292----id-----seen on eBay.
34406----id-----DVD.
34545----id-----eBay, modified for Zenit.
34629----id-----seen on Molotok.
34922----id-----seen on eBay.
35027----id-----id.
35148----id-----id.
35211----id-----id.
35275----id-----id.
35406--- 1st-----Jim McGee
36251-----?-----id.
36261---2nd----seen on Molotok.
36289-----?-----DVD.
36340---2nd---Juhani
36506---1st----seen on eBay.
37021-----?-----PY-C collection.
37270---2nd----seen on eBay.
37349---2nd---- Stephanvdz
38124----id-----DVD.
38198----id-----PY-C collection.
38548----id-----Alain Berry collection.
39112----id-----Jacques Morin collection.
39230----id-----DVD.
39560----id-----Seen on Molotok.
39663----id-----seen on eBay.