Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2

Canada - Modern Errors

The auction will start in __ days and __ hours

Start price: $400

Buyer's premium:

2005, Canadian Bridges, 50c x4 multicolored, self- adhesive top right corner margin imperforated se-tenant plate block of four, originated from a pane of 16, backing paper intact, VF and very scarce, C.v. $1,500, Unitrade C.v. CAD$2,000, Est. $600-$800, Sc. #2103b