UPDATE) Amazon sent me the wrong lens and is refusing to return it now. Ordered the 16-35 GM new and received a used POS lens in the box. : r/SonyAlpha
Amazon.com : Canon FD 35mm 1:3.5 S.C. Prime Lens for 35mm Canon Film Camera. : Electronics
Review: Canon new FD 35mm 1:2.8 - phillipreeve.net