Lower Canada and Maine antique map original. This vintage map of Lower Canada and Maine was published by the Society for the Diffusion of Useful Knowledge (SDUK) in London. The SDUK was formed to publish materials in an economical way for those who could not afford private schooling or preferred self teaching. This historical old map of Lower Canada and Maine is quite accurate and shows many historical features of the area at the time. A nice item for any collection or gift.