values to cover the first weight class for both the local rate and the inland rate. The local postal rate for letters was discontinued after 1 April 1957. The first letter cards were issued on 3 September 1888. By the time production ceased in 1979 a total of 83 different items had been issued. The postal rates were the same as the envelopes. Letter cards were available at both a local rate and an inland rate. The local rate was discontinued after 1 April 1957. Postcards first made their appearance in 1871 and are still being produced currently. Reply-paid postcards or double postcards were in use from 1883 till 1967. Till 1886 they could only be used for inland purposes or to selected countries with whom Denmark had an agreement for their use. From 1886 these cards could be sent to any country in the UPU. From 28 May 1872 newspaper wrappers were available in three different rates – local, inland and foreign in the first weight class. Newspaper wrappers were discontinued after 1965, during which time a total of 50 different wrappers were issued. Aerogrammes were first introduced on 9 October 1949 and continue to be available to date. See also Airmail stamps of Denmark Joint issues of Denmark References and sources References Sources Stanley Gibbons Ltd: various catalogues AskPhil – Glossary of Stamp Collecting Terms Encyclopaedia of Postal Authorities Rossiter, Stuart & John Flower. The Stamp Atlas. London: Macdonald, 1986. Tester, Henry E. & Glenn F. Hansen. Denmark's Numeral Cancellations 1852-1884. Scandinavian Philatelic Foundation, 1987. Philately of Denmark