Favorite this☆ Ludden railway and switching substation Description: View of the Ludden railway and switching substation located at Gratiot Avenue and Ludden Street. Stamped on back: "Photograph by Harold Raymond. No. AP2." Handwritten on back: "P.L.C. Gratiot & Ludden. Ludden railway & switching substation." Details Resource ID: bh019985 Creator: Raymond, Harold Subject: Street-railroads--Electric substations Electric substations--Michigan--Detroit Detroit (Mich.). Department of Street Railways Detroit (Mich.). Public Lighting Commission Detroit Housing Commission--Archives Photographic prints Date Issued: Unknown year Format: 1 photographic print ; 8 x 10 in. Member of: Burton Historical Collection Filing Location: MS/Detroit Archives. Housing Commission. Power plants. 60:1 Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.