Zeiss Ikon 861/07 Bracket for Teleskop 1.7x Telephoto Lens on Contaflex I II V21

This vintage Zeiss Ikon 61/07 bracket is for use with the Teleskop 1.7x telephoto lens attachment on Contaflex I and II cameras. There are a couple of scuff marks on its exterior. Attachment lens is NOT included.