U-1573: England
3" X 4 3/4" (74mm X 116mm)
(front crown incuse) BULLERS LTD LONDON (rear crown incuse) G.P.O. {Bullers}
Picture courtesy Bob Berry |
3" X 4 3/4" (74mm X 116mm)
(dome top) G.P.O.
Picture courtesy Bob Berry |
2 7/8" X 4 7/8" (74mm X 123mm)
(dome incuse) E {Made by Taylor, Tunnicliff & Co.}
Picture courtesy Dave Kresz |
2 7/8" X 4 7/8" (74mm X 123mm)
(front skirt) (rear skirt) {Made by Taylor, Tunnicliff & Co.}
Picture courtesy Dave Kresz |
3" X 4 3/4" (74mm X 120mm)
(front skirt incuse) (rear skirt incuse) G.P.O. {Bullers}
Picture courtesy Bob Berry |
3" X 4 5/8" (74mm X 117mm)
(front crown incuse) LNER (top incuse) ML
Picture courtesy Bob Berry |
3 1/4" X 4 3/4" (81mm X 120mm)
(dome ink stamp) LNWR / 9 (top) {Made by Taylor, Tunnicliff & Co.}
Picture courtesy Gene Kingsley |
Note that colored dome versions were found in South Africa.
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.