Just yesterday, and absolutely by chance (I was buying a tripod), I bought a Kodak Type 021 Model I Retina IIIc
w/ Rodenstock 50mm f/2.0 Heligon
(For a song, I might add
Problem: 1/60 and faster seem O.K., but slow speeds are sticky.
How can I reactivate the slow speeds without any surgery, if possible?