
1 d Penny Black stamp lettered G-G, identified as coming from plate 9 using Guide Lines to the Penny Black by P C Litchfield.
Period of use: Earliest issue dated 18 November, 1840. Plate used very briefly until January 1841 making this fairly scarce.
Colour: Strong black.
Cancellation: Clear Maltese Cross cancellation in black ink (plate 9 is found cancelled in both red and black ink – neither is more common).
Main identification clues:

Vertical guidelines in the right hand letter square and NE square (very common on this plate).

“O flaw”, stage 2.
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PENNY BLACK 1840 QV Stamp GB SG.2 1d Plate 9 (OI) MX Used c£625 {samwells}PRED9
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PENNY BLACK QV GB SG.2 1840 1d Plate 9 (AD) *STATE 1* Spec AS57 Cat £625+ HPR1
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Victoria Penny Black 3 good margins plate 9 (I think) FU
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1840 Penny Black Spec AS59wj Plate 9 (PF) "10" in MX Fine Used 4 Margins
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1840 Penny Black Spec AS57a Plate 9 (EH) Re-Entry Fine Used 4 Margins
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GB PENNY BLACK 1840 QV Stamp SG.2 1d Plate 9 (QH) Fine Used MX Cat £625 BRRED141
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