U-957A: USA

5 3/4" - 3 1/2" X 5 1/2" (146mm - 88mm X 139mm)

 

(skirt incuse) Fred M. Locke [two part glaze weld]

{Fred Locke}

 

Picture courtesy Elton Gish

U number assignment by Elton Gish.

ReturnReturn to the National Insulator US Unipart page