|
2 1/2" X 4 5/8" (61mm X 113mm)
(dome top) PATENT
Picture courtesy Bob Berry |
U-2021: England
|
2 1/2" X 4 5/8" (61mm X 113mm)
(dome top) PATENT
Picture courtesy Bob Berry |
This appears to be made to a patent similar to the J.S. Lewis patent design which is used on the CD 110.5 in the US. U number assignment from Worldwide Porcelain Insulators 1986 Supplement by Marilyn Albers & Jack Tod.
Return to the PIFOUS main page