Antique Postcard, circa pre-1907. Identified as the new general store building at the Portsmouth Navy Yard. Published by H.B. Montgomery. Undivided back, postmarked 1905 from Portsmouth, NH. Condition: This is an authentic postcard, not a copy or reproduction. It is in very good condition aside from some postal ink traces on front. Comments: The Portsmouth Naval Shipyard, often called the Portsmouth Navy Yard, is a United States Navy shipyard located in Kittery on the southern boundary of Maine near the city of Portsmouth, New Hampshire.