T.H. McAllister Manufacturing Optician United States. Canada, c. 1890-1910. Niagara Falls. Denver. California. Yellowstone. Yosemite Valley. Lake Tahoe. Colorado. Nebraska. New York City. San Francisco. Pasadena. St. Louis Exposition. Queen Charlotte Islands. Alberta. Montreal. Approximately 90 gelatin silver bromide positive glass plates preserved in their period wooden box. Many credits "T.H. McAllister Manufacturing Optician" and legends on labels. Average size of the plates : 8 x 10 cm About 90 gelatin silver glass plate positives in their original wooden box. Many credits "T.H. McAllister Manufacturing Optician" and captions on labels. Average size of the plates : 8 x 10 cm