Published and copyright 1955 by W.M. Welch Manufacturing Company, 1515 Sedgwick Street, Chicago 10, Illinois, USA

Description: This vintage 1950s school wall chart makes great decor for more than just the classroom. With detailed illustrations of the physics of air, it is not only aesthetically pleasing, but full of useful information.

Condition: Fair, moderate tears along border. One of two copies available.

This poster is on paper, but please note that we offer linen-backing for an additional cost. Email us at postermuseum@gmail.com for more details.