This lens is for a Mamiya C220/C330 TLR (Twin Lens Reflex) Camera. Look around this site as I have two other C220 lens (6.3/250 & 4.5/135) listed. This lens is in good condition, internally clean of fungus, aperture works smoothly, has the front cap but is missing the rear cap (1910/bag).
Around the rim is written “MAMIYA-SEKOR 1:4.5 f=55MM No. 11654”
Ready to post from Stones Corner in an Australian Post satchel for $10.00, or it can be picked up in Stones Corner/Greenslopes in Brisbane. PayPal is my preferred payment method.