SOUTH AMERICA - FOUR COVERS WITH CASTLE HIGH VALUES: 12 Dec....

SOUTH AMERICA - FOUR COVERS WITH CASTLE HIGH VALUES: 12 Dec. 1956 env. from London to Buenos Aires, Argentina franked with a single Castle 2/6d paying the 1oz rate. 16 Sept. 1957 env. sent express from London to Montevideo bearing Wilding 1/- and Castle 2/6d paying the 1/- express fee and 2/6d for a 1oz letter. 25 Mar. 1959 1/3d registered env. uprated with Wilding 7d strip of three, 1/6d pair and Castle 2/6d paying the 1/- registration and the fee for a 4oz letter. 2 Apr. 1965 env. from London to Brazil bearing a single Castle 2/6d for a 1oz letter. (4 items)