U-182A/182B: USA
2 1/4" - 2 3/4" X 2 7/8" (57mm - 69mm X 73mm)
No markings {US patent 1,305,168 - May 27, 1919}
Picture courtesy Elton Gish |
U number assignment by Elton Gish. Note this insulator was previously listed as a U-124A/B.