U-201: USA

3 3/8" X 4" (85mm X 102mm)

 

(dome incuse) G.P Co.

{General Porcelain}

 

Picture courtesy Elton Gish

3 3/8" X 4" (85mm X 102mm)

 

No markings

{Thomas}

 

Picture courtesy Mid Norris

U number assignment by Jack Tod.

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