Browse Items (1 total) Tags: invention Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Charles Gillespie - Invention These are the glass negatives of Charles Gillespie and his invention. The photos were taken by Charles Wasson of Wasson Studios in Decatur, IL in the early 1900s. Tags: c. 1915, Charles Gillespie, Charles Wasson, Charles Wasson Photo Collection, Decatur IL, Glass Negative, invention, man, negative, Wasson Studios Featured Item Decatur Public Library Board of Trustees Meeting October 17,2020 Monthly Meeting Board of Trustees, Decatur Public Library, on October 17, 2002.