Greetings folks,
Before I begin let me take a moment to introduce myself. My name is David and I do Elizabethan re-enactment. My younger brother is with the 1st Maine Heavy Artillery (North-South Skirmish Assn.)

Now on to the good stuff. I recently acquired a piece of property in Maryland and in a fallen barn on the property I've found what appears to be a Caisson, wooden frame, wooden wheels & hubs, metal tires. Unfortunately there is no box. I'm curious to know if there are any experts who can help me assess this unique find.