Ferrari is stamped on the socket

A quick learner from Castleton on Hudson, NY says:
The Base dimensions are 1 1/4" wide by 2" high. The socket slide is 4 1/4" long and accepts a 7/8" rail. I need both Left and Right sockets.
Thumbnail of the uploaded file named Ferrari Rear Socket.JPG
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Tom from SWISCO responded:

Thanks for posting! If the opening that accepts the rail is 7/8", then consider our 32-018 as a replacement. Look over our dimensions and let me know what you think.

Profile diagram of 32-018
Profile diagram of 32-018
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