Pivot shoe

A home owner from Loysburg Pennsylvania says:
Can you help me identify this pivot shoe? I don't see any names or markings on it and nothing on the window.
Thumbnail of the uploaded file named Pivot Shoe
Thumbnail of the uploaded file named Springs
Thumbnail of the uploaded file named Coil Balance
Thumbnail of the uploaded file named Balance Assembly
A home owner from Loysburg Pennsylvania says:
Pivot shoe assembly is 1 and 1/4 wide, 5/8 thick, 1 and 3/8 high.
Thumbnail of the uploaded file named Width
Thumbnail of the uploaded file named Thickness
Thumbnail of the uploaded file named Height
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Lauren from SWISCO responded:

Hello, thank you for posting,

Your original pivot shoe has been discontinued, but we recommend reviewing the 15-177 as a replacement option. Please review the dimensions below to confirm a good fit! If you need new springs, the 15-177 pivot shoe is compatible with the Series 152 coil springs. Your original springs will be compatible with the new shoe. 

Let us know if you have any additional questions! 

Alternate image for 15-177
Alternate image for 15-177

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