One of 38 glass exhibition flasks, part of a display of Maryland's mineral products (e.g., bituminous coal, brick clay and shale, fire clay and shale, greensand, marl), shown at a number of expositions in the U.S. during the first decade of the 20th century. Reference: Clark, W.B., 1906, Exhibits of Maryland mineral resources made by the Maryland Geological Survey at Buffalo, Charleston, St. Louis, and Annapolis, 1901, 1902, 1904, 1906, in Maryland Geological Survey Volume Six: Baltimore, Md., The Johns Hopkins Press, p. 263-278.
Summary
One of 38 glass exhibition flasks, part of a display of Maryland's mineral products (e.g., bituminous coal, brick clay and shale, fire clay and shale, greensand, marl), shown at a number of expositions in the U.S. during the first decade of the 20th century. Reference: Clark, W.B., 1906, Exhibits of Maryland mineral resources made by the Maryland Geological Survey at Buffalo, Charleston, St. Louis, and Annapolis, 1901, 1902, 1904, 1906, in Maryland Geological Survey Volume Six: Baltimore, Md., The Johns Hopkins Press, p. 263-278.
