Canada CLP3 Officially Sealed an attractive mint block of

an attractive mint block of four showing normal strength (40%) lathework Type D inverted

contains line perf 14 booklet panes of 1c grey black

An attractive item for the specialist

Never Hinged (Unitrade C2b

(Unitrade 41

Canada CLP3 Officially Sealed an attractive mint block of1919 (August 25) $1 Red and Blue Aero Club of Canada, an unusual postmarked airmail stamp the first we recall seeing with what we can describe as a mute double oval intaglio cancellation in black; accompanying Greene Foundation certificate states: CLP3, used, genuine, however not used on the 1919 Aero Club flight nor on the 1920 Grand Army of Canada flight; cancelled at some time with an unknown O; manuscript GAC Carnival written on stamp. A rare item