U-1710: Russia
2 7/8" X 4" (73mm X 102mm) .
(dome incuse) CK in an oval // 1975 . .
Picture courtesy Don Briel |
3" X 4 3/8" (74mm X 108mm) .
(dome incuse) "backwards J" . .
Picture courtesy Don Briel |
3 1/8" X 4 3/8" (80mm X 110mm)
(dome incuse) 02 1948
Picture courtesy George Sukhoff |
3 1/8" X 4 3/8" (80mm X 110mm)
(dome incuse) 1947
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.