The FT would be the first Canon SLR with quick return mirror (before there was a fixed, semi trensparent mirror). FL lens mount is compatible with the FD mount of the following models, but without aperture coupling, the light metering is so at real aperture (by pushing the selftimer lever). The button at the right of the lens is to raise the mirror.Nice gift in pretty good condition. Lack the rewind crank.
In the bag, there was also this 3.5/135mm lens (also FL series) with original lens hood.