A vintage oil can that would have been used to deliver lubrication accurately to smaller components, It fits easily in one hand, and, when primed, a simple squeeze would have pumped oil out of the long neck, right where you want it to go.

The can is showing its age, but that's part of the charm. It's also missing the cap at the end of the spout, which limits its functionality. It could still make a great detail for a steampunk bench or an engineer's outfit.