Reading a Ledger's Marginal Corrections
Launch library · evergreen read

A crossed out figure in a ledger, with a corrected amount written beside it, is not a flaw in the record, it is a second, later act of record keeping layered directly on top of the first, and it deserves exactly the same careful attention as the original entry itself.
Asking when a correction was likely made, by whom, and why, can reveal a great deal: an honest bookkeeping error caught quickly, a dispute settled after the fact, or simply the ordinary tidying that any long running set of accounts eventually accumulates over years of use.
Treating the correction as its own small piece of evidence, rather than an obstacle to reading past, often adds a layer of texture that the clean, uncorrected version of the same ledger could never have supplied on its own, since a tidy final figure alone says nothing about the process that produced it over time.