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(12) <br /> `- nails It was evident that although the sheathing had been <br /> sawn off to permit passage through the door, it had once run <br /> the length of the east side of the fron building when that building <br /> stood alone Additional evidence that the east wall of the front <br /> building once stood to the weather was found at the intersection <br /> of the gable roofs of the "L" (see Figure 7) The roof of the <br /> front building is sheathed continuously under this intersection, <br /> and hand riven wooden shingles are still in place The shingles <br /> are fastened with cut nails , placing this roofing job in the <br /> early 19th century <br /> The wall sheathing does not show evidence (nail holes) of <br /> having once been covered by clapboards, nor did it appear to <br /> k <br /> have been whitewashed The fact that its exterior was originally <br /> unfinished, a treatment more typical for a barn or shed, supports <br /> the tradition that the Garrity House was constructed through the <br /> merging of out-buildings In addition, the diagonal bracing <br /> found in the middle of the east and west walls was not a common <br /> feature of late 18th century house framing Such bracing would <br /> have been unnecessary in a house where lath and plaster would <br /> provide structural stability to the middle of a frame This <br /> type of bracing would have been used on a building with unfinished <br /> interior, such as a barn or shed Thus we conclude that the front <br /> building was originally a two story barn or shed built in the <br /> late 1700 ' s <br /> The south leg of the "L" , or rear building (Rooms 1C and 2C, <br /> Figures 4 and 5) , shows evidence of a slightly later construction <br /> date than the front building Some framing members are hand- <br />