Two-page letter from F.E. Scully of Offenhauser Engineering Co., regarding the technical issues with the Offenhauser racing engine.
The letter from F.E. Scully details the gear ratios of the engine, with specific questions about the impact changes will have to the engine. Previously folded letter, toning to both sheets. Notice of receipt in pencil in another hand. Handwritten by F.E. Scully.
Provenance: Dr. Harlen Hunter, sold at the Heritage Auctions June 30, 2016 Auto Racing Sports Collectibles Catalog Auction #7146. Includes a signed letter of provenance from Heritage Auctions of Dallas, Texas.