![](http://www.alamy.com/thumbs/6/440B0DE4-4413-420B-A328-073E0D929773/W1C0XH.jpg)
Archive image from page 49 of Development of a spherical acrylic. Development of a spherical acrylic plastic pressure hull for hydrospace application . developmentofsph00stac Year: 1970 46
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Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
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Keywords: 1970, archive, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, drawing, historical, history, hulls_naval_architecture_, illustration, image, naval_civil_engineering_laboratory_port_hueneme_calif, page, picture, port_hueneme_calif_u_s_naval_civil_engineering_lab, print, reference, stachiw_jerry_d_1931_, submersibles, vintage