Canada Geological Survey wall map 1945 huge linen backed rare map Mines Geology Glenham Issued 1831

Issued 1831

Issued 1882

Calcutta City

9 3/ 4" W x 13 1/8" H

Printed areas measure c

Canada Geological Survey wall map 1945 huge linen backed rare map Mines Geology Glenham Issued 1831Canada Department of Mines and Resources. Mines and Geology Branch Bureau of Geology and Topography, Map 820A, Published, 1945. Geological Map of the Dominion of Canada. (Wall maps mid 20th century North America Geological Survey of Canada). Issued 1945, Canada, official survey. Lambert Conformal Conic Projection. Significant and uncommon monumental mid 20th century wall map. Linen backed as issued, five feet wide, over three feet tall, mounted to