View of metal grille and clock at the north end of the main banking floor in the Union Guardian Building. The building is also known as the Guardian Building and the Union Trust Building. Art Deco style room has decorated ceiling, tables and rows of bank teller windows. Stamped on back: "Grossman Knowling Lehr, Inc. 400 Marquette Bldg., Detroit, Michigan. File number 81." Handwritten on back: "Metal grille & clock, north end, main banking floor."