Two Gemini 12 manuals personally-owned and -used by deputy launch director Walter Kapryan. First is his manual entitled “Gemini Operations Handbook, Gemini XII—Sect 1,” to which he has added “w/ Revs A.” Several pages bear notations in Kapryan’s hand, with a couple including: “The flow is approximately the same for 95º open & full open” and “Revision A: Delete ‘RES and OAMS reserve TNK Press’ from ‘OAMS and RCS Press. and Temp. select.” He also strikes through several lines throughout and makes slight revisions to various numbers and measurements. Second is his copy of the final version of the Gemini Operations Handbook, entitled “Section III: Operation Procedures,” not including any annotations inside. Both are housed in modern three-ring binders. In overall fine condition. The Leon Ford Collection.