Primarily Petroliana Shop Talk Forums Thread Like Summary - Specification Motoroil System of Little Rock inc.

This was in a box purchased at an estate sale some years ago and im now revisiting the items i couldnt identify. Im hoping someone here may have some info on this company. I believe this company was in business around 1928 thru the depression judging by the dates on the owners western union cards also in the lot.
Any info would be helpful. Thank you!

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Specification Motoroil System, Inc. was a short-lived company in the '30s, I believe. Kinda like Quick lube stations, with oil specified for the different makes/models. They seem to have been located in about every state. I've seen photographs of stations, but I don't recall ever seeing any items, like yours

Station in LA, CA...





Even had globes...

Another station, location unknown...