On the topic of old books that may end up in skips I am trying to reconstruct engineering datasets for British strip steel construction techniques 1925-35. This covers designs such as metal Siskins, Bristol Bulldogs, Hart family, Westland Wapiti and other forgotten inerwar types. JJ Habershons was a steel mill that also produced this strip material. I would be grateful for any books or literature, however obscure, on this topic or interwar aircraft construction techniques or materials.
Description of the work is here :
Hart Hind Bulldog Wapiti Atlas Siskin Hurricane & others steel testing