Image #481 (4.5" x 2.75"): "6-22-29. Stairs from L16 to U17, east side only."; Image #482 (2.75" x 4.5"): "6-22-29. Closing chord L19 L21 east with pin driven at L21. Note how chord is arched and still not connected to hanger at L20. (Gap = 6")."; Image #483 (2.75" x 4.5"): "6-24-29. Same as above, after jacking near side down 6 1/8" and far side up 11 13/16", making total vertical movement at pin of 17 15/16". Note hanger being connected - chord is now straight."
