That 1955 manual provides a better wheel than some pet owners do today.....i can't believe that. Those cage dimensions are sick, the best cage they described was that fruit basket one. Oh and i liked that the manual was teaching kids how to make a water bottle but after that, it was advising how to keep hamsters outside...
Edit: i just red now that they advise to give water to hamsters. Somehow i wish i had this book in 2003 because i was advised against giving water at that time so i didn't provide it.