barrel 6" (presumably shortened), proof 1975, somewhat spotty, condition 4.
proof 1973, barrel bulged in rear half, condition 4.
colour hardened frame and seating lever, brass frame, proof 1972, condition 3.
lock engraved, brass furniture, condition 4.
proof 1975, condition 3.
stainless steel version, proof 1978, condition 3, does not correspond to an existing historic model!