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

Canada

The auction will start in __ days and __ hours

Start price: $75

Buyer's premium:

1859, Cents issue, Queen Victoria, imperforated plate proof of 12½c in yellow green with carmine vertical Specimen overprint, well margined single printed on India paper, no gum as issued, VF, Unitrade #18Pi, C.v. CAD $300, Est. $100-$150 , Sc. #18