Canada, Airmail Semi-Official 1924 (25¢) Green, Laurentide Air Service, horizontal roulettes, complete unexploded booklet of 4 panes of two, printing on front cover only, o.g., never hinged, fresh and pristine, Very Fine and choice. Scott No. CL2a  $1,800. $0 (Image)

Canada, Airmail Semi-Official 1924 (25¢) Green, Laurentide Air Service, horizontal roulettes, complete unexploded booklet of 4 panes of two, printing on front and back covers, o.g., never hinged, couple small gum reside spots on front cover, otherwise Very Fine. Scott No. CL2a  $1,800. $0 (Image)

Canada, Airmail Semi-Official 1924 (25¢) Green, Laurentide Air Service, horizontal roulettes, booklet pane of 2, o.g., never hinged, bright and fresh, Very Fine. Scott No. CL2a  $650. $0 (Image)