Published by Cryenco Engineering Company, Denver, Colorado, 1960
Seller: Eclectibles, ABAA, Tolland, CT, U.S.A.
Manuscript / Paper Collectible
Condition: Very good. Light toning. A scientific chart of "Cryogenic Data" produced to promote Cryenco Engineering Company. Sadly, it has been rendered essentially useless by the disclaimer at its foot: "ALTHOUGH THE ABOVE DATA IS BELIEVED RELIABLE CRYENCO ASSUMES NO RESPONSIBILITY FOR VALIDITY SINCE ORIGINAL REFERENCES WERE NOT CHECKED". On the back is more scientific reference information, such as the Mean Thermal Conductivities of various materials, that we assume is just as useless as the chart on the front. Measures approx. 7" by 3.75", printed in blue and red.