Canada back of the book stamps: semi-postal, air mail, air mail special delivery, air post semi-official, special delivery, registration, postage due, war tax, perforated official, overprinted official.
Revenue stamps, unlike postage stamps, are used to collect taxes or fees on various items and to show that these taxes have been paid.These revenue stamps can be found in virtually every household on some old documents. These documents include old cheques, wills, passports, gas inspection certificates, sales contracts, mortgages, hunting licences, stock certificates, war tax documents, jewellery r...
