Olympus OM-1 Repair Manual page 161

Use by inserting into Q-0008M
Adjust tension by turning Parts No
CA8531.
Use only to support lenses on
repairing. Larger dia. for OM
lenses and smoller for lenses
of P$nFT & FTL.
Use by inserting into Q-
0009
M.
Use for Parts No. CA8777.