1926-32 Unadpoted photographic proofs by Bradbury & Wilkinson, unusual & a unique assembly (25 proofs) (Image)

1926-1927 Registered airmail legal size covers (2) franked diverse values including air mail imperforates, flights Montevideo – Buenos Aires and Montevideo – Rocha, all 2 covers franked with corner pairs or blocks div. values with sheet numbers in margins, interesting & decorative items