Vintage 1930s illustration of The Greatest Heights and Greatest Depths.

The New Book of Knowledge by The Waverley Book Company Ltd 1940s.

Size: 3810px × 4957px
Photo credit: © Michelle Bridges / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 1930s, 1940s, appleton, book, company, depths, education, greatest, heights, history, illustration, kennelly-heaviside, knowledge, layer, social, tropopause, troposphere, vintage, waverley, world