No markings, the only info I know is that the windows are about 20 years old.
Bob from SWISCO responded:
March 27, 2019
Thanks for posting. Your glazing's end profile looks similar to our 55-080. Take a look at the listed dimensions and see if it matches your old glazing bead. If you need a longer length of the same glazing bead, see our 55-080-6.