Cherryland Postcard Auctions
"Mechanical postcards are postcards that have moving parts. Mechanicals may be as simple as a die cut top revealing a different picture when opened. Or it could be as complicated as pulling a tab for a curtain to move and totally change the image. Some mechanicals have wheels that change the faces on a body or dates on a calendar."
From: The Encyclopedia of Antique Postcards © by Susan Brown Nicholson
(used with permission)
