Lot 228 Canada #503a 1969 (6c) Children Praying Christmas Issue with Black Omitted, a mint never hinged block of four, with each stamp having its black colour omitted during printing. Extremely fine and quite rare in block format. Accompanied by a 2015 Greene Foundation certificate. Rsv. $5,000. Unitrade CV $10,000.
A Traditional Philatelic Auction House — Ottawa, Ontario, Canada
