To me the right latch looks like Better Built Window Latch Pair product number 26-295 and the left latch looks like product code 26-333. The measurements on both latches are identical to your specs in your catalog, 15/16 inches x 1 5/16 inches for the solid square and almost 11/16 wide for the pull.
I don't know the brand of my windows and there are no markings. My house was built in the 80s. Which part do you think I should purchase? I greatly appreciate your help,
