'THE SCOTTISH ADDITIONAL HALFPENNY MAIL TAX 1813-1839' BY BAKER, GRAHAM, SANIG AND SHAND. Good to fine copy of the excellent 2017 publication, published by The Scottish Postal History Society, card covers, paperback, 376 pages, small bend to front cover. Contents: The History Behind the Tax, The Implementation of the Tax in Scotland, The Mailcoach routes, Postal Rates, The Handstamps, The Introduction of the Handstamps, The Exempt Towns, The Mystery of the 'Carlisle Red' Handstamps, The Scottish Town Handstamps, The English and Irish Handstamps and The Welsh Additional ½d Mail Tax 1836-1839. Essential reference. (Ref 140419).