View of metal grille gate for the safe deposit vault in the 1st basement of the Union Guardian Building. The building is also known as the Guardian Building and the Union Trust Building. Stamped on back: "Grossman Knowling Lehr, Inc. 400 Marquette Bldg., Detroit, Michigan. File number 10." Handwritten on back: "Grille gate. Safe deposit vault, 1st bsmt."
