3 1/2" X 5 1/4" (89mm X 129mm)
(Top inkstamp) ITP 1 {Zapel}
Picture courtesy Bob Berry |
3 1/2" X 5" (88mm X 125mm)
(Top inkstamp) 78079 {Chodziez}
Picture courtesy Bob Berry |
U-1288: Poland
3 1/2" X 5 1/4" (89mm X 129mm)
(Top inkstamp) ITP 1 {Zapel}
Picture courtesy Bob Berry |
3 1/2" X 5" (88mm X 125mm)
(Top inkstamp) 78079 {Chodziez}
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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