The interior view of the Dayton Building, otherwise known as the E.T. Dayton Building or currently known as the Dayton, Osborne & Ritz Building at 78 Main Street appears here. The lack of computers or office equipment like adding machines and typewriters, along with the gaslights and the note the photograph is from a glass plate negative suggest this image would predate 1910. A date is estimated based on the photo technology and gas lamp.