Chart cabinet
A cabinet of anonymised figures
These pages are specimens, not a promise that your instrument will look the same. Names of works and exact values are taken off. What remains is the manner of the room: units on the axis, events in the margin, gaps left as gaps.
If a specimen is close to your own log, say so when you write to the desk. We would rather know you need a paired figure than discover it after the quote.

Inlet and product temperatures on one pair of figures. Power-cut lag marked in the margin, not removed.
Ridge temperature against vent hours; soil moisture against irrigation. Sundays missing, left as gaps.

Turbidity and a handheld check written in the book. The handheld hours are ticks, not a second smooth line.
River intake series with rainfall named by the client. We did not add a weather model; we only marked the days they gave.
Wind and temperature from a small station. Icing hours called out by the keeper, hatched on the figure.

A photographed chart-paper roll. Time marks were readable; the transcription notes sit under the drawn figure.