For sale is a used Yashica 80-200mm f4 ML telephoto zoom lens for C/Y Contax-Yashica mount SLRs (or mirrorless cameras using an adapter, no adapter for sale here). Includes front and rear caps, original case (shows plenty of wear), and original box.  It really looks as if this lens has spent most of its life in the case, protected from any possibility of use or abuse.