2015 (02) Inventive Britain - Bletchley Park 'Special' - Bletchley CDS

Unusual Bletchley Park 'Special' - Bletchley CDS.

No Official for this issue, Bletchley used a cover from a previous stamp issue to create this ''Special' as the 1st Class stamp featured 'Colossus' which was based at Bletchley Park.

Only 50 full set covers produced....

Code: 55989