Paul from SWISCO responded:
March 10, 2016
This looks somewhat like our 15-177 pivot shoe, which also works with the Series 152 coil spring. See what you think.
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Paul from SWISCO responded:
March 11, 2016
Our Series 152 screws to the shoe. You have an older version that is no longer available. I can't tell if your shoe has accessible screw holes or not, so you should check to make sure. The 15-177 has a screw hole on either side.
As for the stamp, can you tell me how much your sash weighs? Can you also confirm how many springs are used on each side of the window? |
Paul from SWISCO responded:
March 15, 2016
Yep, with one spring on each side of an 18 pound sash, I would go with the S152-9.
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