Canada 554a, 554b

1971 Six cent Christmas – Snowflake, a spectacular corner fold-over error “block” showing a complete full stamp printed on the gummed side and a complete full stamp entirely missing the blue colour (only shows the albino engraved impression), along with two parts for each error due to the fold-over. A fantastic, one-of-a-kind showpiece multiple, Very Fine, Never Hinged (Unitrade 554a, 554b; catalogue value $4,000++)