The ASIFA-Hollywood Animation Archive has just posted a gallery of terrific illustrations from the 1950s by illustrator Boris Artzybasheff.
In his introduction to the section titled "Machinalia" in his book As I See, Boris Artzybasheff says, "I am thrilled by machinery's force, precision and willingness to work at any task, no matter how arduous or monotonous it may be. I would rather watch a thousand ton dredge dig a canal than see it done by a thousand spent slaves lashed into submission. I like machines."Link