A quick learner from cheyenne wy says:
September 29, 2016
Would you possibly know the manufacturer of this corner or if you may carry it?
Dave from SWISCO responded:
October 3, 2016
I have seen this type of corner before. Unfortunately, I don't believe it's still available. It has a very narrow leg which does not match up to any screen corners made today. I would suggest ordering a new screen from a hardware store, or a glass shop in your area who manufacture screens. You can save any parts from the old screen for repairs. Sorry we can't be of more help!