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ID: 2A1643
Processing of Titanium Dioxide, Titanium Exhibit, Gem Hall, 1950
ID: 2A1642
Titanium in the Home, Titanium Exhibit, Gem Hall, 1950
ID: 2A1641
Titanium Exhibit, Gem Hall, 1950
ID: 2A1640
Exceptional Light Dispersion of Titania (Rutile) Prisms, Titanium Exhibit, Gem Hall, 1950
ID: 2A1639
ID: 2A1638
ID: 284078
Girls from Washington Irving High School in Morgan Hall, 1935
ID: 273569
Panel E displayed in Morgan Memorial Hall of Gems, February 1931