Sliding Patio Door Rollar

A contractor from Texas says:
Very similar to the item posted except the small metal piece with hole in it points upward.

Markings are "Del Mar Eng. Long Beach CA Pat 3,670,367.
User submitted photos of a patio door roller.
Profile picture of Paul
Paul from SWISCO responded:
Thank you for posting. I recommend comparing our 81-269 to your roller and see how well they compare. This may be a good match!
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