Pics of the RH latch/corner and top corner (front and back) are attached along with the the assembled corners in an insert needing replacement glass. The latch corner is stamped with the number 7003 and the top corner has the number 10 on one leg and 23 on the other. These were purchased from Three Rivers Aluminum Co (Traco) of Pittsburgh, PA in 1978. I assume I'll have to drill out the crimps in order to tap the corners out of the frame?
