U-1792: Russia
3 3/8" X 4 5/8" (83mm X 113mm)
(ear inkstamp)
Picture courtesy Bill Ostrander |
3 3/8" X 4 5/8" (83mm X 113mm)
(ear inkstamp) {side view showing embossing & hole}
Picture courtesy Bill Ostrander |
3 3/8" X 4 1/2" (83mm X 110mm)
(ear inkstamp) TBA M.C.K.
Picture courtesy Steve Coffman |
3 3/8" X 4 5/8" (83mm X 110mm)
(ear inkstamp) TBA M.C.K.
Picture courtesy Steve Coffman |
3 3/8" X 4 3/4" (85mm X 120mm)
(ear inkstamp)
Picture courtesy George Sukhoff |
3 3/8" X 4 3/4" (85mm X 120mm)
(ear inkstamp)
Picture courtesy George Sukhoff |
3 3/8" X 4 1/2" (83mm X 112mm)
(ear incuse) {Kornilov}
Picture courtesy George Sukhoff |
3 3/8" X 4 1/2" (83mm X 112mm)
(ear incuse) {Kornilov}
Picture courtesy George Sukhoff |
3 3/8" X 4 3/8" (85mm X 112mm)
(ear incuse)
Picture courtesy George Sukhoff |
3 3/8" X 4 3/8" (85mm X 112mm)
(ear incuse)
Picture courtesy George Sukhoff |
3 3/8" X 4 1/2" (82mm X 113mm)
(ear incuse) 98 {Kornilov}
Picture courtesy George Sukhoff |
3 3/8" X 4 1/2" (82mm X 113mm)
(ear incuse) 98 {Kornilov}
Picture courtesy George Sukhoff |
3 3/8" X 4 1/4" (82mm X 108mm)
(ear incuse)
Picture courtesy George Sukhoff |
3 3/8" X 4 1/4" (82mm X 108mm)
(ear incuse)
Picture courtesy George Sukhoff |
3 3/8" X 4 1/2" (84mm X 115mm)
No markings
Picture courtesy George Sukhoff |
3 3/8" X 4 1/2" (84mm X 115mm)
No markings
Picture courtesy George Sukhoff |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.