Favorite this☆ Excavation for U.S. Post Office on Griswold and Larned Description: Excavation and foundation for Post Office on corner of Griswold and Larned. Construction materials, including metal crane. Surrounding buildings in background. Details Resource ID: DPA1854 Subject: Post office buildings--Michigan--Detroit Construction equipment--Michigan--Detroit Photographic prints Date Issued: Unknown year Format: 1 photographic print ; 6 x 6.5 in. Member of: Burton Historical Collection Filing Location: D/Buildings-Federal-Post Office (1860) Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.