Old 1930's Fan Identify

[shoafluvslights]

 Hello!

  I am helping someone clean out their barn and we found a ceiling fan in there. She thinks the fan is from the 1930s and I can read GrayBar Electric Company on it. Does anyone have any insight to what model this fan may be and what it may be worth?

Thanks!

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[Obi-Wan Canopy]

Made by General Electric. Plain, uncommon, but not rare model. $50 if you want to get rid of it locally, $150 online on a good day.