A price board is useful only when it says what was measured. At South Arch, late sellers use a second scale after the day market closes. Both scales are certified, but a buyer cannot compare their totals if the board hides which one was used.
Sellers are right that the late scale is tested. Buyers are right that certification alone does not make two methods interchangeable. The market should publish the scale mark with the price and keep the older record available for comparison.
This is a small change with a public benefit. A shared method note lets a buyer ask a precise question and lets a seller challenge an incorrect conversion with a record in hand.
The market office should add paired scale readings before the next late-season window. It can close the file after the method appears beside the price, not merely in an office ledger.
The market board closed this review by adding the scale method beside each posted price. The next window will compare buyer slips with the paired readings.
