Sounds old to me or antique. Find any markings or writing on the barrel or reciever and if possible take some close up pix. If its a double barreled shotgun maybe take it down by removing the forend and see if there is anything else stamped or written under those parts. These guys on this forum are really good at stuff like this!
well a google search doesn't get anything except this-
Jane T. Dana is the General Counsel of the U.S. Agency for International Development.