398 - Space.- NASA.- Earth Observations Book, ASTP Revision A, by Flight Planning Branch Crew Training & Procedures Division, prepared by Ronald A. Weitenhagan and approved by T. W. Holloway, 54 double sided cards with tab dividers, illustrations and charts, creases and folds to the tabs, original covers ring bound, ink ownership inscription 'Slayton' to front cover, creases to corners, small tears to hole punches and edges, slightly age toned and marked, 265mm x 215mm, Texas, Lyndon B. Johnson Space Center, 1975.

Space.- NASA.- Earth Observations Book, ASTP Revision A, by Flight Planning Branch Crew Training & Procedures Division, prepared by Ronald A. Weitenhagan and approved by T. W. Holloway, 54 double sided cards with tab dividers, illustrations and charts, creases and folds to the tabs, original covers ring bound, ink ownership inscription 'Slayton' to front cover, creases to corners, small tears to hole punches and edges, slightly age toned and marked, 265mm x 215mm, Texas, Lyndon B. Johnson Space Center, 1975. *** A scarce technical internal document from the Apollo-Soyuz Test Project (ASTP) 15th-24th July, 1975. The historical mission was the first joint space exploration between the United States and the Soviet Union. This copy belonged to Donald Kent "Deke" Slayton (1924-1993), the Docking Module Pilot for this flight.