3 1/4" X 4 1/4" (82mm X 108mm)
(upper wire ridge embossed) O.P. Co. [dry process] {O.P. Co.}
Picture courtesy Elton Gish |
U-274: USA
3 1/4" X 4 1/4" (82mm X 108mm)
(upper wire ridge embossed) O.P. Co. [dry process] {O.P. Co.}
Picture courtesy Elton Gish |
U number assignment by Jack Tod.
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