The original factory-installed film advance lever retaining rings are made of aluminum alloy.
Brass Film Advance Lever Retaining Ring for Leica M1 M2 M3 M4 M6 M6j TTL MP MA
New Brass Film Advance Lever Retaining Ring Shutter Guard Ring for Leica M7
Film Advance Lever Brass Retaining Ring for Leica M1 M2 M3 M4 M6 M6j TTL MP MA
CANON AE-1 PROGRAM FILM SLR FILM ADVANCE LEVER
Film Advance Lever Decorative Trim - Cap/Cover - for Olympus OM1 OM2 - 2 Pieces
Nikon FM Film Advance Lever Leatherette Original Used Spare Part
