Day 21's prompt was Chains!

Many horrifying weapons were unleashed at the climax of the Great War. One of the League of Nations tasks is cleaning up their aftermath, though at times it can be difficult to distinguish if the things that are found are the weapons themselves, or the results. Whichever it is being hauled here, it took a direct hit with a heavy artillery shell just to -stun- it. It's been chained to the trailer so that it can be shipped to a League research facility on the East coast of the US, where scientists will hopefully figure out how to neutralize it more permanently.

For the curious, the tractor is a Twin Cities 60-90, one of the largest tractors ever made when they were first built between 1913 and 1915. They were produced at least until 1921. This one has been pressed into service by the League of Nations, which has replaced the normal Twin Cities logo with a League roundel. The driver is understandably anxious about his cargo/passenger...