Start with clock calibration cards and the service board that uses its signal. It is the source used to decide how a service announces time when the public clock is being calibrated; it is not the decision itself. The rule only works if the source describes conditions at the clock face at Vesper Steps.
Known: the current file counts 52 public services with the calibration date posted, compared with 51 in the prior window. The clerk matches the current rule to the dated amendment and public notice. The entries have dates and a named clerk.
Disputed: The clock keeper trusts the calibration card. Residents rely on the time board at the route entrance. One side emphasizes the posted total; the other points to the clock is adjusted during the quiet interval but its board stays visible.
Why it matters: the decision determines which residents can rely on the service and which staff must carry out the change. The file does not settle that by itself.
Next: The Year first, late winter window 1 file remains open for its scheduled decision. The keeper will post the calibration window on the route board before work begins.
