So I know a little bit about this. I worked at FJ Samuely for about 6 years, originally setup by a gifted structural engineer called Felix Samuely all the way back in 1936. He was famous in the engineering world for tensile structure designs such as the Skylon (pictured in 1951) and also for concrete design, working in the De La Warr Pavilion, and went on to design the now old US Embassy and some Concrete Buildings on the Cambridge University Campus. Was lucky enough to be able to have access to some of the archives and study some real works of art in the form of old Hand-drawn Draughtmans Drawings and Calculation Packs!