GB026.15
WNS Member
Great Britain
Issuing date
19 February 2015
Theme
Science & Technology
(Information Technology)
Subject
Inventive Britain - Colossus computer
Width
35.00 mm
Height
35.00 mm
Denomination
1st class
Format
sheet of 30 & 60
Perforations
14.5 x 14.5
Issuing authority
Royal Mail of Great Britain
Printer
International Security Printers