U-1922: England
2 3/4" X 4 3/8" (70mm X 111mm)
No markings
Picture courtesy Rick Soller |
This is a dryspot insulator where the wire drops from the line and threads through between outer and inner skirts and exits through a hole at the top. U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.