pivot lock shoe

A handy person from Levittown, Pa says:
I found a tag on the window 10 550 ser. D/H 3165 white 34 1/4 x49 3/4 standard roofing (Trento) 7 811 88
That's all the info I have for now.
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Paul from SWISCO responded:
I'm afraid that tag does not tell us what you have. I recommend looking through our selection of pivot lock shoes to see if anything here is a match. If not, we will need a picture of your pivot shoe for reference. I will also need your dimensions.
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