Est parts were put on 2x original Yashica label which can now be considered mint, 2x PORST rebrand of the same lens in good condition with some remarks. One PORST has 1cm circular cleaning scratch on front edge. Second PORST has 3mm light scratch on front edge also. Some apertures close slower though totally clean (weak spring by default and not an issue on digital camera). 3 lenses lost A/M plastic switch (common issue, but makes no problem). All lenses tested: top performers Sony A7 full frame confirmed. On photo top: Black nose Yashica (MINT) PORST COLOR REFLEX serial 578 (front edge scratch, minor filter damage and used body) On photo bellow: PORST COLOR REFLEX serial 577 (small front edge scratch) Chrome nose Yashica (MINT). The item "4x M42 Yashica Yashinon-DX 1.7/50 very nice lot, konvolut, collection tested A7" is in sale since Thursday, April 27, 2017. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses".optikka" and is located in EU.