EXTERIOR. The original portion of the spring house is constructed of stone, with stucco exterior finish. The frame addition is covered with rough-sawn redwood lap siding over half-inch vapor-sealed sheathing. The roofing for this portion of the house is slate shingles, matching the slate roof of the original portion which used shingles taken from the mansion house when it was renovated in 1942. Copper gutters and downspouts were installed in 1961, as was copper flashing at the base of the chimney. ASSOCIATED BUILDINGS I. THE TOBEY HOUSE [98] Title to the property on which the house was built remained in Michael and Belinda Straight. [99] "A New House with Young Ideas," _House and Garden_, December 1958. [100] David Condon, AIA, interview December 12, 1969. Initially it was proposed to locate the house with its back to a line of trees separating the upper and lower portions of the pasture west of the main farm house. This would have taken advantage of the view to the west of the house, considered to be its best view. Ultimately, however, the house was located in the lower pasture, closer to the Little River Turnpike but screened from the highway by a line of trees planted for that purpose. [101] _Ibid._ This is the opinion of David Condon, who served as architect for both the original building and its subsequent addition. He notes that the building's style was rare in the Eastern United States, although it had appeared and was popular on the West Coast. III. THE LOG CABIN [102] _Alexandria Gazette_, November 6, 1839, advertisement. IV. THE SPRING HOUSE [103] _Alexandria Gazette_, November 6, 1839, advertisement; John Mosby Beattie, interview April 17, 1969. [104] John Schlebecker, Curator, Division of Agriculture and Mining, Museum of History and Technology, Smithsonian Institution, Washington, D.C. Interview held February 26, 1969. [105] Walter Macomber, interview July 16, 1968. It appears that no drawings were made of the spring house as it appeared before its conversion into a caretaker's residence, and no plans have been preserved to show the construction undertaken for the conversion. [Illustration: Figure 20. Fairfax County Property Identification Map, 1969, Green Spring Farm, Quadrant 72-1.] APPENDIX A COMMONWEALTH OF VIRGINIA COUNTY OF FAIRFAX HISTORIC LANDMARKS SURVEY Name of Property: Green Spring Farm (Moss House) Owner: Michael W. Straight et ux. Location (Street Address): 4601 Green Spring Road, Alexandria, Va. Mailing Address: c/o Mudge, Stern, Baldwin & Todd, 20 Broad Street, New York, New York 10005