Hi! I need a new crank for this window and I cannot find any labels or markings on the windows. House was built in the 80's.
Looks like the space from top to bottom mounting holes are 5 1/8,
the space between two bottom mounting holes is 1 1/2,
and the arm holes are approx 2 1/2 to 2 5/8 apart.
Any suggestions? Thank you so much!