5 7/8" X 4 5/8" (148mm X 117mm)
No markings [blue jean seam] {Thomas}
Picture courtesy Bill Vincent |
U-431: USA
5 7/8" X 4 5/8" (148mm X 117mm)
No markings [blue jean seam] {Thomas}
Picture courtesy Bill Vincent |
U number assignment by Jack Tod.
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