I estimate its age to be around 1880. It measures 18" wide by 10" deep by 11 tall to top of dome. It is 10" tall at the sides, so the dome is 1".It open and closes without a problem. I don't have the key. One of the leather straps on one of the sides is tattered and the strap is missing altogether on the other side. There is a crack in the wood on one side (see the second to last picture) and the wood can be "pulled away" in an area on the bottom (see last photo) - I assume it could be nailed to the bottom, but always leave antiques "as is". It has great character and needs a good home! The item "Doll Trunk Breadloaf Dome Style Salesmans Sample Circa 1880 Wood Wooden" is in sale since Friday, March 15, 2019. This item is in the category "Antiques\Furniture\Chests & Trunks\1800-1899". The seller is "caseychr_xxlb2mq" and is located in San Francisco, California. This item can be shipped to United States.