sliding glass door rollers

A quick learner from Arizona says:
these are out of a sliding glass door that has been in the house since the 50s. On the door handle is barelt legible "miller". I cannot fing these anywhere and I am hoping you can help. I am terrible at computers nd if the pics didn't show up please feel free to contact me and we can figure out another way. Thanks and have a good day.
User submitted photos of a patio door roller.
Profile picture of Tom
Tom from SWISCO responded:
Sure, this looks a lot like our 81-264. Check it out and see what you think. WE don't carry the bracket that yours attaches to, however. Would you be able to reuse it?
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