Plaque Unveiling for GCHQ

We have just received wonderful photos from Westminster City Council who we were thrilled to provide a plaque unveiling stand and curtains to hold the plaque which marked the centenary of British intelligence agency GCHQ.  Queen Elizabeth II visited the original London headquarters to unveil a coded plaque.

The plaque unveiled by the Queen appears fairly conventional, before you notice the series of lines and dots under selected letters. Admittedly, it’s not the hardest code to crack: combining the marked letters reveals the message, “1 HUNDRED YEARS.”