U-1986A: United Kingdom
3 1/2" X 5 3/8" (88mm X 136mm)
(top embossed) M R 1883
Picture courtesy Russ Firth |
3 1/8" X 4 7/8" (80mm X 125mm)
(top embossed) LANGDON & FULLERS PATENT NO 8
Picture courtesy Aaron Bailey |
U number assignment by Bob Berry May 2021.