Lot 830 Newfoundland #C3a 1921 35c Red Halifax Airmail Issue with Inverted Overprint, mint lightly hinged and very well centered, this is the overprint without period and is quite rare, with only 40 stamps known (this is the first we have offered). A very fine example of this must-have variety, for the serious Newfoundland or varieties collector. Accompanied by a 2021 Greene Foundation certificate. Rsv. $4,400. Unitrade CV $7,500.