1835 Hall Map of Brazil, Uruguay, and Paraguay

This is a beautiful map of Brazil and Paraguay from Sidney Hall's extremely scarce 1835 New General Atlas. Towns, rivers, mountains, railroads, canals, marshes, forests, and various other important topographical details are noted. Elevation throughout is rendered by hachure and political and territorial boundaries are outlined in color. Issued shortly after the Brazilian war of Independence that freed the massive South America nation from colonial Portuguese control in 1822, this map covers Brazil and Paraguay from Colombia to Rio de la Plata. In 1831, Pedro I, the founder and first ruler of the new Empire of Brazil abdicated in favor of his five year old son and left for Europe. Under the weak regency, elected to rule the country until Pedro II came of age as Emperor, Brazil descended into in civil war. In 1840, Pedro II was declared fit to rule and, proving a strong monarch, managed to bring stability and peace to Brazil.

Sidney Hall's New General Atlas was published from 1830 to 1857, the first edition being the most common, with all subsequent editions appearing only rarely. Most of the maps included in the first edition of this atlas were drawn between 1827 and 1828 and are most likely steel plate engravings, making it among the first cartographic work to employ this technique. Each of the maps in this large and impressive atlas feature elegant engraving and an elaborate keyboard style border. Though this is hardly the first map to employ this type of border, it is possibly the earliest to use it on such a large scale. Both the choice to use steel plate engraving and the addition of the attractive keyboard boarder are evolutions of anti-forgery efforts. Copper plates, which were commonly used for printing bank notes in the early 19th century, proved largely unsuitable due to their overall fragility and the ease with which they could be duplicated. In 1819 the Bank of England introduced a £20,000 prize for anyone who could devise a means to print unforgeable notes. The American inventors Jacob Perkins and Asa Spencer responded to the call. Perkins discovered a process for economically softening and engraving steel plates while Spencer invented an engraving lathe capable of producing complex patters repetitively - such as this keyboard border. Though Perkins and Spenser did not win the prize, their steel plate engraving technique was quickly adopted by map publishers in England, who immediately recognized its value. Among early steel plate cartographic productions, this atlas, published in 1830 by Longman Rees, Orme, Brown & Green stands out as perhaps the finest. This map was issued by Sidney Hall and published by Longman Rees, Orme, Brown & Green of Paternoster Row, London, in the 1835 edition of the Sidney Hall New General Atlas.