Lot
73 BK
Canada, Airmail Semi-Official 1924 (25¢) Dark Red/Light Red, Laurentide Air Service, horizontal roulettes, complete unexploded booklet of 4 panes of two, top stamp dark red and bottom stamp light red, o.g., never hinged, manuscript "5th Issue" on front booklet cover, Very Fine, a rare complete booklet. Scott No. CL4b $2,250.
Realized: $850