Here's another item that came in a box of miscelaneous stuff I got in
a trade. It's a Mamiya lenscap marked on the inside "M645" and "RB"
and "77Ø" The last means it will fit a lens which accepts 77mm
filters. It's in very good condition.

http://cgi.ebay.com/ws/eBayISAPI.dll...m=330015753722