The Giant Robo Alphabot, part five

It's time for two more entries in the robot alphabet. Today's pair have a distinctly retro feel, both hailing from the same decade. Actually, not just the same decade, but the same year. Each of these machines first appeared in 1957. Or rather they didn't, they were invented much later, but their backstories saw them both spring into action in an imaginary, alternative 1957.

So 1957 is clearly a good vintage for giant robotic things. But what's the significance of that year? If you're not sure then the answer can be found somewhere in the text in one of the images.

Also, as I've said before, if you're partial to a bit of Pinterest then clicking right here will allow you to see all the existing posters in one place.