Canada Geological Tectonic Wall Map 1950 huge rare 5' wide British Columbia Caucasus- Armenia & Georgia Beautifully engraving technique

Beautifully engraving technique

7 7/8" H x  14 3/4" W

Attractive

Almost certainly one of the earliest available printed images of a seashell anyone could ever hope to acquire

with one image a geographical distribution by altitude and climate

Canada Geological Tectonic Wall Map 1950 huge rare 5' wide British Columbia Caucasus- Armenia & Georgia Beautifully engraving techniqueTectonic Map of Canada. Lambert Conformal Conic Projection Standard Parallels. Prepared by the Geological Association of Canada with the Support of the Geological Society of America. (Wall maps mid 20th century North America Geological Survey of Canada British Columbia New Foundland Labrador). Issued 1945, Canada, official survey. Lambert Conformal Conic Projection. Significant and uncommon monumental mid 20th century wall map. Color lithographed,