When:April 21 to July 1, 2012  10:00 AM to 5:00 PM
Where:Clay Center Art Gallery
Occurs every week on Sunday, Wednesday, Thursday, Friday, Saturday.
Link:http://www.theclaycenter.org/art/currentexhibits/default.aspx
Details:

The Curious World of Patent Models 
April 21 through July 1, 2012 
Organized by Smith Kramer and the Rothschild Patent Model Collection 

Take a nostalgic trip back in time to see the start of many early American dreams and inventions. From model cars, toys and washing machines to the first patented rocking chair, fold-out bed and burglar alarm, these creative and fascinating antique models are sure to delight!