Del Mar roller

A quick learner from Foothill Ranch, CA says:
Part labelled:
Del Mar Engr
Long Beach, Cal
Pat. 3,670,357
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A quick learner from Foothill Ranch, CA says:
Wheel dia 1.5 inch
Length 2 1/4
Body height 1 3/16
Dimple width 13/16
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Tom from SWISCO responded:

Thanks for posting! Please take a look at the 81-039 roller. This could be the one you are looking for but see how well it matches up to your roller. Our dimensions aren't exact but they are very close.

Alternate image for 81-039
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