Haarlem-Holland: The Technical Publishing Company H. Stam . First Edition. , 7-472 pages. 8vo. Publisher's black cloth with titles in gilt and red. Lacks the rare dust jacket. With a full page presentation bookplate depicting a medieval assault on a castle complete with rocket launch on the front pastedown. This bookplate is SIGNED by both authors, and presented to J. W. Ernste. Half of rear panel shows mild evidence of damp with a few paper remnants still affixed. Otherwise clean internally and out. Front hinge paper starting to separate at the bottom but still quite sound. Withall a decent copy. Very Good. Cloth. 
"One of the earliest post-war books on rocketry. This important work provides a compilation of the material obtained by Uytenbogaart for the Allies during World War II. Includes detailed information on V-2 design and operations (including maps of launch sites), the use of rockets for space travel, and a mathematical analysis of rocket dynamics."
Ciancone notes this edition is known in blue or black cloth with no priority known. He does not note this variation with the presentation bookplate, which we've seen with one author signature, and now for only the second time with both author signatures.
Ciancone, Foreword to Spaceflight, an Illustrated Bibliography of Pre-1958 Publications on Rocketry and Space Travel (2018), #116.
Ciancone, The Literary Legacy of the Space Age, 1998, #116.