U-1805: Denmark
2 3/4" X 3 7/8" (69mm X 99mm)
(top ear inkstamp) 1970
Picture courtesy Bob Berry |
2 3/4" X 4" (69mm X 102mm)
No markings
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators Supplement by Marilyn Albers & Jack Tod.