1945 airmail envelope addressed to Sutton Coldfield. franked horizontal pair 15c and a single 1/- tied 'NAIROBI' c.d.s.'10 N0 49' Flown from Nairobi to Hurn on "Springbok" air service operated by B.O.A.C Avro York. On arrival 1d adhesive applied tied 'SUTTON COLDFIELD' c.d.s. '14 NO 49' Re-posted on arrival for proof of transmission time.