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

Description: Understanding heat has never been easier with this vintage 1950s wall chart with detailed illustrations and labels. This poster works as a quick and easy guide to learning about solar heat, refrigerators, and more.

Condition: Good, moderate tearing along left 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.