Favorite this☆ Cylinder head Description: View of cylinder head. Handwritten on back: "Accessories--Mechanical, Cylinder head, Thelma Motor Works, 1911." Details Resource ID: na002926 Subject: Automobiles--Motors--Cylinder heads Photographic prints Date Issued: 1911 Format: 1 photographic print ; 7.25 x 9.25 in. Member of: National Automotive History Collection Lazarnick Collection Filing Location: Accessories--Mechanical #2 Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.