British Stamps
1918

SG 413a to SG 417
George V and Britannica
'Sea Horses'

Issued Dec 1918 to 1919. Designed by Bertram Mackennel and printed by Bradbury, Wilkinson and Co. Ltd on 'Simple Cypher' watermark paper and perf 11 x 12.

These Bradbury Wilkinson printings are 22.6 to 23.1mm high due to the curved plates used in printing. On most of these stamps there is a minute coloured guide spot in the margin just above the middle of the upper frame line. The earlier Waterlow and De La Rue printings are exactly 22.1mm high.