Top slider/roller broken off and missing. Top of door mirror is loose, flops around. It's from a Stanley/Monarch Safety Mirror. The "hotline" phone number now goes to a different business. Might be 40+ years old. See photo of label.
Emily from SWISCO responded:
June 10, 2021
Hello!
Take a look at our 23-222C top roller guide. Look over our dimensions and compare them to yours to see how they match up.