An unusual variant of Thomson’s map of Scotland

Although the imprint states that this map was 'Drawn and Engraved for Thomson's New General Atlas', this example has been issued folded with an engraved text description of Scotland, a table of roads of Scotland, and a table of the places on the Mail Coach Road between Edinburgh and London via York. The slipcase label reads 'A New Travelling Map of Scotland... Constructed from Mr Arrowsmith's Celebrated map... Published by John Thomson & Co.'. Curiously, the map appears to be printed on the verso of sheets of other Thomson maps; this is only obvious when held up to the light. The bookseller's label reads 'Thomson Brothers, Booksellers & Stationers, No 2 Princes Street Edinburgh'; The National Library of Scotland's 'Scottish Book Trade Index' names one as John (not the mapmaker!) and dates them to 1821-5.