wree eee eens SECRET — RESTRICTED DATA de delet tdcadine tT tl Lo tb betesthos ian Bry desk, sirloin ae tie bediied, ik a atts bs Eceilhnilh tits: Prabal eee en en eee Re ee FeO gale em mp ee mn Ae 14 dtdliniriioad beforted OWETe rer manta Sete Ceepee am Oren oD [ SRE ee tee eee ee mee two electronic pressure gages was primarily a weapons developmenttest. Asa result only ment inatrumentaticn would were mounted on Structure 3.1.1. A program of transient displace d results. measure the with analysis the ing correlat in have materially assisted = of the Office of the Chief of Prior to Operation Ivy in the fail of 1952, a epresentati: ed extensive photography of Engineers, Departmentof the Army, visited the site and supervis g the completion of Ogeration Followin interest. of es structur other aa well a8 Structure 3.1.1 undertaken, Ivy the damage survey by Stark and Archer was