I think you are looking at a specialist magazine vs a very mainstream ad campaign. Check how many, 'Get rich', 'learn a trade' ads there are in this 1949 popula

I think you are looking at a specialist magazine vs a very mainstream ad campaign. Check how many, 'Get rich', 'learn a trade' ads there are in this 1949 popular mechanics magazine, https://archive.org/details/PopularMechanics1949/Popular_Mechanics_01_1949/page/n11/mode/2up https://archive.org/details/PopularMechanics1949/Popular_Mec... I think the first "article" is on page 81.