Need correct shower door replacement brackets (w/rollers)

A quick learner says:
I have an old curved shower door that needs the replacement brackets with rollers. I don't know make or model but have attached picture. Do you recognize anything like this? Appreciate your help! Thanks!
Thumbnail of the uploaded file named 2C4C7998-0E64-41B3-B1DA-8348CD871E59.jpeg
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Bob from SWISCO responded:

Start by looking at our 10-061 Shower Door Roller. Please compare and see if you think this matches what you need. If it differs, remove your old roller for a closer look, and we'll try and find something better. 

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