| 2½d Scarlet KGVI (Vertical Format) Booklet, BW B53Av - SG SB28v, unlisted format 1 normal and 1 inverted wmk pane |
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| 2½d Scarlet KGVI (Vertical Format) Booklet, BW B53A - SG SB28, with unlisted format of 1 normal and 1 inverted watermark pane, not listed in the ACSC or by Stanley Gibbons
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Item #: INV-70112
Condition Bo
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