No markings. Approx 5/8"x 3/4". The notched side tucks into the aluminum frame, the curved side is essentially a spring to hold in place
Bob from SWISCO responded:
January 8, 2021
I am afraid we don't have this exact glazing bead. See our 55-211, or maybe the 55-310 Andersen Bead, typically for 3/8" thick glass. Compare both with your old hardware and see if either match up.