Newfoundland C2b

1919 One dollar on Fifteen cent Alcock & Brown Flight surcharge, a choice fresh mint single with scarce overprint type – no comma after “POST”, no period after “1919” (Position 14 in the setting of 25 subjects); pencil signed by expert Giulio Bolaffi on reverse, Very Fine, Never Hinged (Unitrade C2b; catalogue value $1,300)