No markings. Lens filter.
Mamiya Sekor C 55mm f/2.8 N For M645 1000S Super Pro TL from Japan [Near Mint]
[NEAR MINT w/ Case] Mamiya Sekor C 55mm F2.8 Lens For M645 1000S Super Pro JAPAN
CLA'd *MINT* Mamiya Sekor C 55mm F2.8 N Lens M645 1000S Super Pro TL From JAPAN
Rare" S "[MINT] Mamiya Sekor C 55mm f2.8 Lens M645 1000S Pro TL From JAPAN
Near MINT Mamiya Sekor C 55mm f2.8 S Wide Angle Lens 645 Pro TL Super M645 Japan
[MINT w/ Case] Mamiya Sekor C 55mm f2.8 Lens for 645 1000s Super Pro TL Fr JAPAN
![Mamiya Sekor C 55mm f/2.8 N For M645 1000S Super Pro TL from Japan [Near Mint]](https://images.buynet.work/thumb.php?i=402702943&s=400)
![Mamiya Sekor C 55mm f/2.8 N For M645 1000S Super Pro TL from Japan [Near Mint]](https://images.buynet.work/thumb.php?i=397865975&s=240)
![[NEAR MINT w/ Case] Mamiya Sekor C 55mm F2.8 Lens For M645 1000S Super Pro JAPAN](https://images.buynet.work/thumb.php?i=397866212&s=240)
![[MINT w/ Case] Mamiya Sekor C 55mm f2.8 Lens for 645 1000s Super Pro TL Fr JAPAN](https://images.buynet.work/thumb.php?i=398406371&s=240)