They cracked Enigma. They built TEMPORA. They watch the world. This is the book governments hoped you would never read.
#GCHQ #Bletchley #ColdWarEspionage #books #bookreviews
https://grandpasbookreviews.blogspot.com/2026/04/gchq-britain-secret-intelligence-agency.html
GCHQ: Britain's Most Secret Intelligence Agency Uncovered

book review

@gknauss Also, we have a #Colossus.
It is a rebuild of the #Bletchley WW2 machine, runs on paper tape and thermionic valves.
A Queen Elizabeth II Type G Pillar Box in Bletchley, City of Milton Keynes. See it here: https://postboxmap.co.uk/r/MK2-519 #PostboxMap #UKPostboxes #Postbox #QueenElizabethII #PillarBox #TypeG #StandardRed #Bletchley
Just added: Queen Elizabeth II Type G Pillar Box in Bletchley, City of Milton Keynes. View it here: https://postboxmap.co.uk/postbox/69ce6b28aafae0a6608ecb7e #PostboxMap #UKPostboxes #Postbox #QueenElizabethII #PillarBox #TypeG #StandardRed #Bletchley
Location of maintenance depot for East West Rail confirmed http://dlvr.it/TQcgQw #Bletchley #EastWestRail #Network #RailNews
Location of maintenance depot for East West Rail confirmed http://dlvr.it/TQcgMP #Bletchley #EastWestRail #Network #RailNews
55022 ‘Royal Scots Grey’ to haul Deltic Express in March http://dlvr.it/TPwcMD #Bletchley #BRClass55NoD9000RoyalScotsGrey #Class55 #Crewe
55022 ‘Royal Scots Grey’ to haul Deltic Express in March http://dlvr.it/TPwbRn #Bletchley #BRClass55NoD9000RoyalScotsGrey #Class55 #Crewe
Refurbished Class 50 to haul charter train next February http://dlvr.it/TPsrzv #Bletchley #Class50 #Crewe #London
Refurbished Class 50 to haul charter train next February http://dlvr.it/TPsqq0 #Bletchley #Class50 #Crewe #London