Lot 21316 – 1962-69 Tripoli International Fair imperf. proofs

1962-69 Tripoli International Fair imperf. proofs on 11 pages from the Courvoisier archive, 1962 issue with two sets of 3-stage progressive proofs (in different shades), 1964 issue with 4-stage progressive proofs of the set, 1965 50m with two sets of 5-stage progressive proofs (in slightly different shades), 1965 issue in 4-stage progressive proofs of the set, 1967 issue with three sets 5-stage progressive proofs of both values (in different shades), 1968 55m with three sets of 4-stage progressive proofs with unadopted colours crossed out by red pen line, and 1969 issue with 6-stage progressive proofs with extra 25m proofs in unadopted colours and cancelled by red pen line, ex Courvoisier Archive (126)