Miami Window Corporation operating crank left and right side of window

My crank is a little different from the 1960 picture you have on your site. Instead of the crank attached to the side and upper portion mine has an axel (lack of a better word) exiting horizontally from the bottom to the edge of the window sill then a handle tightens on the axel with two allen screws and forms an "L" over the sill and has a small knob at the end to hold.

I need to replace several and a little work on a couple of the moving parts on the frame.

Can you help? Sometimes I am a quick learner and handy person but I am a home owner and commercial real estate agent. There were Miami Windows intalled near me but the last time I found somebody replacing them I was not notified when to come for parts.

I can send a picture when I get somebody to e-mail it to me

Here are the additional photos you requested. part that attaches to the window is 2-3/4" long, 3/4" wide, and 3/16" thick. Distance between mounting holes 1-5/8" apart outer edge 2-5/8" holes are 1/4" depth at widest point from base to the window 1-7/8"

Thanks Dave, by your "Ah" I seem to have thrown a pleasurable memory your way. That's the one you recommended (r/l) earlier & glad I provided further measurements for confirmation.