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

Description: The scientific and physical properties of sound are explored on this vintage poster from the 1950s. Colorful and detailed drawings accompany explanations, making learning enjoyable and easy.

Condition: Excellent. 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.