Antique Real Photo Postcard. Identified as "Fernside" in Princeton, Massachusetts. Published by Herbert E. Glasier & Co. on behalf of Fernside. Divided back, postmarked 1931. Condition: This is an original photo postcard, not a copy or reproduction. It has some rub marks and lower right corner crease. Comments: Fernside, or the Vacation House for Working Girls, is a historic former resort hotel at 162 Mountain Road in Princeton, Massachusetts. It is a complex of three buildings: its main house, a barn that was converted into a playhouse, and a two-car garage. The core of the main house is a Federal style house built in 1835 by Benjamin Harrington. The house was converted for use as a summer hotel around 1870, and in 1890 it was acquired by the Working Girls' Vacation Society as a place to provide summer recreation for city working women. It is around this time that wings were added to the house, and the barn was converted to a playhouse. The property was used by the Society until it was sold in 1989. The facility is now owned by McLean Hospital, who used it as a drug treatment center.