Kip Copper opens sealed mail lists, transfer marks and the ridge carrier book at the mail branch between Underway and Flint Ridge. Before anyone changes a mark, the crew checks the packet list is copied before the ridge carrier accepts the seal. The store season period sets the pace of the work.
The page holds 55 sealed packets with a mark at both route transfers. Kip Copper reads the preceding count, 53, before the next line is entered. A number without a date would not tell the next crew what changed.
The tunnel office counts a packet at dispatch. The ridge office counts it after the seal is checked. Here the difference is visible between the posted rule and the route, service or shift just beyond the door.
The board publishes two route options with access and repair limits stated. The Year first, store season window 1 file remains open for its scheduled decision. The next list will carry one seal mark from entry through final handoff.
The shift closes with the source page attached to the board. The next file uses a new date and scope.
