|
4" X 4 3/4" (101mm X 122mm)
(upper umbrella incuse) 5105
Picture courtesy Bob Berry |
U-1897: Switzerland
|
4" X 4 3/4" (101mm X 122mm)
(upper umbrella incuse) 5105
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
