.bk J05 .fl U312jW.j .fd View log .fn v221-v230 .ed U312 .ei jW .rd U312 .ri jW v 221 NW gf266,285,245,41 gk105 Documents the fact that the base of stones in f66 are at the same elevation. This suggests that they were installed at the same time even though their orientations are different.