Sliding Door handle from Weathershield sliding screen door 1977

Replacement handle needed for screen door on a Weathershield 1977 sliding screen door.  Black plastic with white slide.  One side is riveted on the inside of the frame.  Square slide on channel to lock the sliding door.  Measurements are 2" wide by 4 1/4" high and rouchly 3/8 inch thick at the thckest part of the balck handle.