Postal Stationery fulfilled the requirement for the public to be able to buy envelopes, postcards and other items with the postage already paid and a 'stamp' (technically 'the indicium') printed on each. A pack of 1d cards with a wrapper might be purchased for a fraction over the postage value, meaning that there was no need to apply a stamp to each card. Such items conformed to set standards and had advantages for the post office concerned. There are numerous categories of postal stationery (postcards, reply-paid cards, envelopes, newspaper wrappers, registered envelopes) with some produced in different sizes. In the early days of collecting, cut-outs from stationery were very popular.