Seller: birddog6969 (1,775) 100%, Location: Millerton, Iowa, Ships to: US & many other countries, Item: 322319691307 Unbelievable set of Solid Copper Door Knobs. The story with these is they came out of the Iowa City Capital building when moving to Des Moines. The Capitol in Iowa City was open in 1847 threw 1857. These knobs are solid brass with a brass collar to lock on to shaft. They are time period but they support no makers mark. I can not confirm or deny this story but no matter what they are courthouse knobs and extremely early!! Would make an unbelievable gift or door accent.