RHODESIA & NYASALAND FEDERATION
CAA Express Letter Service / Airmails
CENTRAL AFRICAN AIRWAYS EXPRESS LETTER SERVICE
F563
1955 21st December (endorsed), long envelope bearing QEII ½d and pair 2d definitives, endorsed 'PER C.A.A. AIR LETTER SERVICE', reverse applied with 6d CAA Airways Letter Service label, all cancelled with special boxed 'Central African AIRWAYS / NDOLA' cachets, to Salisbury.
£40