Marty Bullfinch: Nicky, you old bucket of bolts, it's Marty. I know it's been a while, but I came across a little mystery I thought might get your circuits firing. You remember that ugly grasshopper statue on top of Faneuil Hall? Turns out it's got a note in it. A note, written by the son of one Shem Drowne. I don't expect that name means anything to you, but the guy was a coppersmith, way back when folks did shit like that. Apparently, this note leads straight to the old guy's stash. I don't know what's in it, but I'd sure like to know if it's still there. I'm gonna go do a little recon of the hall. If you decide you wanna get the team back together, you let me know.
This item is seemingly a quest item for The Disappearing Act quest, so it cannot be dropped until that quest is completed.