U-1710: Poland
3" X 4 1/4" (74mm X 104mm)
(front dome inkstamp) (rear dome inkstamp) F {Giesche}
Picture courtesy Bob Berry |
3" X 4 1/4" (74mm X 104mm)
(front dome inkstamp) (rear dome inkstamp) {Giesche}
Picture courtesy Bob Scafe |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.