Shoptalk may be Sabotalk - THE WALLS HAVE EARS

Never put anything in your ear but your elbow.

A giant ear hovers over a factory, reminding Canadian citizens to be careful with their words.  The artist, noted on the lower right, is Morris. I like the design and color scheme of this poster very much.  Issued by the Wartime Information Board, Ottawa.  Printed in Canada.  Design, courtesy Walls Have Ears Organization. 24.5" x 18".