A very rare ( same of Simlar ) Tokyo Kogaku Topcor 50 1.5 LTM . Only produced very short period and mostly can be found is Topcor 50/2 . Optics in mint condition while cosmetics use condition have a little bit dent on front but not affect anything of course . A very good bokeh effect . Len only w filter n back cover ( not include adaptor )

https://www.35mmc.com/03/08/2020/tokyo-optical-co-topcor-50mm-f-1-5-ltm-semi-sonnar-mini-review/

https://leicalenslist.com/makes/tokyo-kogaku