local dealer no longer in business, have run out of replacement sash face guides
winguard sh parts for a sh700 window - numbers on production ticket that came with them e219367 cpp 16a-000-329
Paul from SWISCO responded:
March 12, 2018
I don't think we have this exact face guide, but two possible replacements come to mind. See our 67-014 and 67-015. Our 67-015 also uses a screw to keep it secure.