Police spokesman Frank Pasquarello says the items found Thursday afternoon may be from a market on the property.
Forensics examinations are expected to reveal the age and gender of the skeletal remains found at the 149-year-old home in Cambridge, a city of about 100,000 residents where Harvard University and the Massachusetts Institute of Technology are located.
Homeowner Rosalie Foster says the discovery was "unbelievable at first" and a little shocking. In her words, "Wow, I got a body!"
Foster says police told her she can claim the antique gun later because it was found on her property.