Great Britain 1924 10d turquoise-blue Specimen, SG428var Space & Aviation Henry Cooper has signed on

Henry Cooper has signed on his portrait inside the booklet

register of unpaid incoming mail

lower right corner block of 12 (4x3 - the bottom row severed and rejoined)

It last appeared in 2005

Great Britain 1924 10d turquoise-blue Specimen, SG428var Space & Aviation Henry Cooper has signed onGreat Britain 1924 10d turquoise blue, SG428var. A very fine unused example with original gum overprinted "SPECIMEN" type 32. A very rare King George V Specimen example, which was used solely by postal administrations as reference to help detect any attempted forgeries. GB Specialised Catalogue No: N44u The Stanley Gibbons catalogue value is 2,250. ALERT ME WHEN ANOTHER IS AVAILABLE > SELL ONE OF THESE >