For sale is a nice Olympus set it includes:
Zuiko 35mm F2 with leather case
Zuiko 50mm F1.4 with rubber hood
Sigma Macro 90mm F2.8 macro lens with 52mm filter thread with hood and leather case
Albinar teleconverter
extra Checker-matte type focusing screen
olympus flash adapter has some hairline cracks
rubber eyecap for om-2n
hoya 49mm uv filter
olympus 49 mm macro reverse ring for zuiko lenses

camera and lenses are in good cosmetic condition, lenses have perfect glass, without fungus, scratches or cleaning marks.

Price is $400, I can also trade for Elmar 50mm, Nikon PB-4 bellows with slide copy attachment, Nikon bellows 105 F4 lens, Leica film cassettes.