The metal object in Unit 4 seems to be a vessel of some kind. It looks like it has a handle, and it’s not very deep (note the small silver spot where they’ve uncovered the bottom). We’re currently gathering guesses about what it is.
The General Lew Wallace Study & Museum, in accordance with Governor Eric Holcomb's stay-at-home order, is currently closed. Staff is checking email and phone messages sporadically. Stay safe and be well.