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Three kinds of post reach the box: a card that reads wrong, an offer that has moved or expired, and a question about how a figure was worked. Corrections come first in the queue and in the signalman’s estimation, because a reader who arrives holding the terms, dated, is the sharpest quality control there is. Every correction is checked against what the operator currently publishes, and the published term decides.
Replies go out in the order post arrives, most often inside a few working days, and each reply carries its date. Partnership and advertising questions are read as well; they receive the standing line in return, that the scores and the order come from the scoring marks alone and no commercial arrangement shifts them. The reader’s route card stays in the reader’s possession from first mark to last.