i will be so appreciative if you can help me find the handle and other parts! thanks.
Hello,
Your casement lock resembles the Andersen 38-145 and 38-146, which use the 39-290 lock bezel, 39-291 handle, and 39-418 keeper. Take a look and compare the specifications shown on our product pages to your hardware.
There's a good chance that we can supply the operator parts that you need as well but we would need to see the entire assembly, including the rest of the arm that attaches to the window sash, to compare to our inventory. Thank you!
Take a look and compare your operator with the 39-332, along with the 39-267 handle and 39-152 cover. Also, see the 39-362 adapter plate. Being that your window is from the early 1980'S you might need this adapter plate to attach the new operator to the window sill. Review the information shown on the product pages of the related parts shown on this page to see how they compare to yours.