Design Aesthetic:

Pre-Computer Electric Industrial

Perhaps this aesthetic already has a name, but I've not yet discerned it. This is a class of design that seems to center around the second world war. Information-switching machinery was needed but the transistor did not yet exist. Radios were operated by humans in the dim light of the glowing tubes. Voltage readers had big, gothic looking red needles against white printed backdrops. Everything seems to be made of bakelite and radius-bent steel.

Above: Two WW2-era 'huff-duff' devices. Images from Wikipedia.