3 1/8" X 2 3/4" (79mm X 69mm)
(crown incuse) PIERCE 1605 PATD 5-18-15
Picture courtesy Bob Berry |
U-189: USA
3 1/8" X 2 3/4" (79mm X 69mm)
(crown incuse) PIERCE 1605 PATD 5-18-15
Picture courtesy Bob Berry |
U number assignment by Jack Tod. Manwaring-Hessel Patent 1,140,050 May. 18, 1915
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