Image #484 (2.75" x 4.5"): "6-25-29. Progress. Last verticals, U21 L21, east, have been erected. (Looking north)."; Image #485 (2.75" x 4.5"): "6-27-29. (Looking south). Showing complete suspended span (note portal bracing b'tn. end posts) cantilevered from ends of cantilever arms (which also have portal bracing between last diagonals L16 U17)."; Image #486 (2.75" x 4.5"): "6-27-29. Progress. All truss members in place."
