Zeiss Tessar 50/2.8 "eagle eye" lens

This specimen underwent full teardown . Saved from certain destruction. I've put lot of work to get this working. This legendary lens deserved to be preserved. Details : Zeiss Tessar 50mm Apeture: 2.8 Apeture travers - ONLY MANUAL ( automatic apeture assembly went missing before this one get to me, therefore apeture is working only in manual mode) Year of production : 1969 Version : zebra Mount : m42 Condition: Optics : excelent ( in full running order) Mechanics : - helicod assemby - full movement fromm 0.33m to infinity - apeture ( running in manual mode) no auto as mentioned Overall : As mentioned , restored to running order from scratch. In my opinion good acquisition for actual photography, not in collector condition. In optical and functional way - doing its job. However it has battle scars from past. I didnt cover them, there are a part of its history.