SG 824-828 1970 Queen Elizabeth II Literary Anniversaries. 5d. in a se-tenant block of four and the 1/6d. in a single. IMPERFORATE IMPRIMATURS.

Great Britain 1970 Queen Elizabeth II ‘Literary Anniversaries’.  5d. in a se-tenant block of four and the 1/6d. in a single (complete for this requisition).  IMPERFORATE IMPRIMATURS. ONLY 2 BLOCKS OF FOUR OF THE 5d. AND 3 SINGLES OF THE 6d. WERE RELEASED INTO PRIVATE HANDS BY THE NATIONAL POSTAL MUSEUM IN LONDON (1984/85).  AN EXCEEDINGLY RARE AND IMPORTANT EXHIBITION ITEM.