ANDERSON WINDOW BALANCE

A contractor from SILVER SPRING MD says:
I HAVE A ANDERSON WINDOW BALANCE. THE ONLY MARKINGS ON THE BOX ARE

11600-17
11/R BU8 4 90
11600A-3
US PAT NO S
3.335.455
PAT
1967 CAN

CAN YOU PLEASE HELP THANKS
CHRIS
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Tom from SWISCO responded:
Hmm... I'm not sure I recognize any of those stamps. Could I see a few pictures of them? With these kind of balances, seeing how the numbers are printed is often just as important as the numbers themselves. Thanks!
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Casey from SWISCO responded:
You could also consider our 24-11R. This can replace balance boxes with a stamp of 11R.
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