These three potlids and bases were dug from small trashpit near the 1862-63 winter camp of the 9th Massachusetts Infantry Regiment. This regiment was a mostly Irish unit from Boston. Two of the pot still have original contents in them which is pretty remarkable being that they were buried for over 140 years. The Roussel potlid is relatively common. I believe the 2 Boston potlids are fairly rare. Best of luck to all.