This Profession Is Not Crowded

Popular Science has put its 137-year archive online (found via BibliOdyssey), which means hours of harmless fun searching for old pictures of space travel for us all. This February 1920 edition features some very of-their-time issues:
But what I’m really fascinated by, among all the cures for bow-leggedness and stammers, are the many ads for money-making schemes, which have some excellent career suggestions:
You can also find Big Profits in Vulcanizing, and Get Bigger Pay through Electricity. Most promising of all is The Police Key, which “opens almost everything”. “Every householder should have one”, they innocently suggest.