Aha! Now we know where Salvador Dali got his inspiration from. He ripped off 16th century woodcuts
It does seem like all of these illustrations make some sort of commentary on the times. The jester with the pointed nose is a lier, has a sharp tongue and pointed/sharp wit. He is set up like a siege engine on wheels, so perhaps it refers to tactics of winning sieges through wit, lies, and good oratory skills.
The other siege engines look like experimentations with rams, lances, guns and maybe even a draw-bridge.
The tower and the metronome-like contraption seem to demonstrate some sort of awe or apprehension with machinery and mechanical contraptions. The tower with the connected wheels doesn't seem to do anything, unless it is a signal tower of sorts. The soldier pulling on the rope appears to have a meaningless job...perhaps a comentary on the obsolescence of human labour in the face of mechanization? By that time water and wind mills were already used to drive many industrial/craft processes - milling, blacksmithing, carpentry...
Further down there is a tower with three sets of wheels in a triangular arrangement, connected by gear to a wind turbine...wind-power locomotion anyone?
Just some thoughts...thanks Michael for posting these facinating illustrations.
Emanuel