Motorhead and brake drum part, Trojan Auto Products, Southern California, 1931

2 photographs of motorhead and brake drum, Trojan Auto Products, Southern California, 1931. "Subject: Motorhead & Brake Drum, parts; Agency: Logan & Stebbins; Client: Trojan Auto Products; Original Print Order: 1 ea[ch]; Size: 8x10; Finish: gl[ossy]; Re-Order: 1 #2;, Mount: do not [ilg]type; Year: 1931; Job: 5-13-93" -- on envelope front. "Operator's Report (Name): Henry; 2 Original Photographs-At Studio: @ 2.00; Amount: 4.00; Extra Charges: Gudleman" -- on envelope back