friction shoes needed

A quick learner from Bainbridge Island. WA says:
February 2, 2023

Hello. I bought a couple #15-104 Caradco Friction Shoes as a test to replace my many broken shoes. These will not work on my jambliners.

Our double hung wood windows from the '80s have jambliners with a track on the bottom; which the shoe slips over and rides on.

The attached pix show one of mine that has not broken (on the hook). No model number or name to be seen, but inside the channel are embossed patent numbers: 4551881

Any leads or tips? Thanks very much, Richard 

Thumbnail of the uploaded file named IMG_8048.jpg
Thumbnail of the uploaded file named IMG_8050.jpg
Thumbnail of the uploaded file named IMG_8053.jpg
Profile picture of Emily
Emily from SWISCO responded:
February 3, 2023

Hi, Richard.

I'm afraid we don't recognize this shoe. If the 15-104 won't work then we have nothing else that would even come close, unfortunately. I am very sorry for the inconvenience. 
Caradco Friction Shoe
Caradco Friction Shoe
15-104
$1.95
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.