A "chicken gun" developed by the US CAA and the Westinghouse Electric and Manufacturing Corporation is fired at a piece of glass, demonstrating its use in testing aircraft components.
Photo credit given on page 41 of <a rel="nofollow" class="external text" href="https://books.google.co.uk/books?id=a73U-LVtMckC&amp;printsec=frontcover#v=onepage&amp;q&amp;f=false">the issue</a> is simply "Acme".
Excerpt from the July 1943 issue of <i>Flying</i> magazine.