A saddle-leather briefcase at year ten outshines its year-one self; a scratched watch crystal does not. The difference is not sentiment. Patina is wear that records use without recording damage: the darkening of vegetable-tanned leather, the softening of a book’s spine along its true opening line, the polish a brass clasp takes from one pair of hands.
The trades that price patina correctly are the ones that build for it. Full-grain leather patinates; corrected-grain peels. A sewn binding opens more generously each decade; a glued one merely loosens. The object either has a second act designed into it, or it has a countdown.
Collectors know this instinctively, which is why “original condition” and “well kept” are compliments from different vocabularies. The first praises abstinence; the second praises stewardship. The house sides with stewardship: books are for reading, cases are for opening, and the marks of both, honestly earned, appraise upward.
“Patina is time agreeing with the maker.”
Patina, in the end, is time agreeing with the maker. It is the one finish no workshop can apply.