De La Rue 2013 stamp printings with and without printing date, sheet number

As reported on 17 July the new tariff stamps from the spring, originally printed by Walsall with year code M13L were later printed by De La Rue with year code MA13 as intended.

At that time we had the 78p with a printing date of 24/04/13, but we now know that - despite this being an low demand surface-mail rate stamp - DLR started printing even this value before they had the inkjet attachment working, and thus the sheets also exist with no sheet number or printing date.  You can buy these here.