3/4" window stop needed - see profile in attached picture (aprox 1/4" return)
Emily from SWISCO responded:
January 12, 2024
Thank you for contacting us. This appears to be a glazing bead. We don't have an exact match but take a look at the 55-164, 55-192, and 55-197. Review the dimensions and see if you think you can adapt any to your window.