Old 2-Pane Crank-Out Window Parts

Part 1 (left and above)? Plastic/Aluminum Hook Imprinted with PAT No 2997754.
Attaches by 1 small screw to fixed point on the frame.
Cranked to fully closed position, Part 2 (below) rests hooked under the metal latch.

Part 2 (right)? Plastic stub that appears to attach and be held by friction to the frame of the slide out window panel. Matches in fully closed position with metal hook of Part 1.

Minimally needed, One (1) of Part 1, and two (2) of Part 2. Depending on cost would order up to 5 (full set plus a spare) each.