This is a very nice vintage Nippon Kogaku Japan 50/1.4 in LTM. No oil on blade. Clean and clear, smooth operation. Some sign of usage and also with a very nice vintage Nippon Kogaku front cap as shown. It can be used for close up (uncoupled) and it a ideal fast lens for the Sony A7 / A7R.
I also have the highly collectable Nippon Kogaku Tokyo version. Will provide it for comparison.