Pair of 1d Red stamps lettered M – K and M – L, identified as coming from black plate 5 using Guide Lines to the Penny Black by P C Litchfield.
Period of use: 1841.
Cancellation: Rare single strike black Maltese Cross cancellation covering the pair. This would have been against regulations (each and every stamp should be individually cancelled).
Main identification clues:
- Small dot below and touching SE corner L square.
- Low left positioning of letter L.