U-199: USA

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

 

No markings [dry process]

{Thomas}

 

Picture courtesy Elton Gish

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

 

(umbrella incuse) THOMAS

{Thomas}

 

Picture courtesy Elton Gish

U number assignment by Jack Tod.

ReturnReturn to the National Insulator US Unipart page