Here's a cool and rare Iowa piece from Uchtorff Brewing Co., Davenport, Iowa. Plastic and metal, approx 14 inches in diameter.

I don't have much information on this sign from Blackhawk Brewing Co. It's cool and you don't see this one too often.

Here is a very cool pre-prohibition tray from Interstate Brewing Co. in Sioux City Iowa. This tray sold on ebay in Jan 04 for $648.85 I would say this is one tuff tray!