No name crank handle for 21 x 40 window.

We may be able to replace this handle, but the most important detail we use to identify it is missing. Right at the base of the handle, where there's a little damage, there should be a cartridge of some kind. This cartridge will have a hole that installs over the operator's stem.

If you can remove that cartridge and measure the diameter of that hole, we can recommend a match. There's a solid chance it will be 11/32" in diameter, in which case I would recommend our 39-205. You should measure your hardware just to be 100% sure, though.