Great Britain 1911 £1 deep green, SG320 Bavaria stamps I call upon the people

I call upon the people of the United States

PROOF (x2) in RED of the complete 5x6 setting used to overprint respectively the lower halves (this with "WALLBANK" imprint at foot

A most unusual and highly visual printing variety

Two printing plates (1 and 2) were prepared and registered

Translation:

Great Britain 1911 £1 deep green, SG320 Bavaria stamps I call upon the peopleGreat Britain 1911 1 Deep Green, SG320 Somerset House Printing A magnificent high value King Edward VII issue in premium condition. A very fine and fresh unmounted mint example, with full original gum, of the 1 deep green, printed at Somerset House. This most distinctive and memorable stamp design caused controversy at the time because of its unusual shape and size. It is now argued by some as being the most attractive definitive stamp issue of King