What use is the stuff that went on 60 years in the past when most people involved with it are dead and a lot of the knowledge has been lost in the meantime?
I remember picking through an aerospace scrapyard in North Hollywood a decade ago with extremely-talented launch engineers (and entrepreneurs). The aim was to look at parts, measure them and figure out why they were built like they were. We looked, a little, at stuff like nozzles. But mostly we focussed on bolts, joiners, turbine blades and the like.