Bracket-bound Rocketdyne/North American Rockwell J-2 report entitled "Model Specification, 200,000-LB-Thrust Oxygen/Hydrogen, Liquid-Propellant Rocket Engine, Rocketdyne Model J-2,” original date of July 20, 1960, and revised date of April 8, 1970, 155 pages with a 70-page addendum, 9 x 11, issued as report R-2158bS with Code Identification No. 02602, Contract NAS-19, prepared by W. D. Lockett, Contract Specifications. The report consists of the following sections—Scope, Applicable Documents, Requirements, Quality Assurance Provisions, Preparation for Delivery, and Notes—and includes a group of nine tables and 52 figures. The Scope section begins: “This specification defines the requirements for the Rocketdyne Model J-2 Liquid-Propellant Rocket Engine designed to operate at a nominal vacuum thrust level of 200,000 pounds…The Rocketdyne Model J-2 shall use liquid hydrogen and liquid oxygen as propellants. The engine shall have a single thrust chamber.” In very good to fine condition, with obvious signs of use, and a tear and stain to the lower left corner of the front cover.
