Colliers-New-Encyclopedia-p67-1921 [Beyond Wikipedia: Background and Reference Sources]

By
Roxanne Shirazi
 – September 30, 2015
A SPHERICAL BALLOON AND BALLOON SHED USED IN THE UNITED STATES ARMY

Original image from page 67 of “Collier’s new encyclopedia : a loose-leaf and self-revising reference work … with 515 illustrations and ninety-six maps” (1921) via Internet Archive on Flickr. Modified for this post.