: ‘ Sebeles a eS slice Ete 5 eet Fig. 2.23-— Posttest, Building 4, interiors view of roof crack, Same location as Fig. 2.21 (looking toward front wall), Fig. 2.24—Posttess, Butiding 4, interiors view of tool crack adjsceat lo colon Lise om Ballairg 3 side (looking toward front wall). 36 SECRET — RESTRICTED DATA