Canada Great Lakes Huron Erie Ontario New York 1883 Lett's detailed SDUK planCanada. (Lake Huron Lake Erie Lake Ontario). Issued 1883, London by Letts, Son & Co. Attractive and fascinating 19th century color lithographed map. A late re issue of the SDUK plates from the 1830's & 40's, here transferred from steel to a lithographic process of printing, with amendments made to the maps during the process. Hence, Lett's firm did not merely re issue the SDUK maps, but created entirely new maps using completely different printing