London 2010 Festival of stamps - 1st class double-head

Proof that the 1st class double head stamp really is being sold in sheets, contrary to Royal Mail's stock list, but as mentioned in an earlier reply to correspondents:

The stamp is printed in sheets of 25, formed into 6 sheets, three across and two down.  Twin-pane sheets are available but Post Offices will generally have sheets of 25.  Sheet markings:

- the caption is above columns 1 & 2,
- the sale date below columns 4 & 5,
- the cylinder numbers to the left of row 4 (C1 phos, C1),
- the traffic lights to the right of row 4 (phosphor above red),
- the barcode and short title to the right of rows 1 & 2, and
- the positional grid to the left of row 2.

If I had been involved I would have made sure that Festival of Stamps was fully capitalised, but maybe I'm just old fashioned?  How about you?

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