The position of this camera with center part metering and pursuit needle meter is less expensive version of Canon F-1.
FTb in pictures of this page is minor change version and has shutter speed display in its viewfinder.
FTb's specification was that for rather maniac people when compared with the competitor of those days, Pentax SPF.
Most of FTbs in used camera market were much used and worn ones and it was hard to find beautiful one.
Mechanical shutter, manual metering.
Start of sales : July 1973("New FTb")