Field Experiment № 1 · Vintage Menswear
Authentication that shows its work.
Warp & Weft photographs a vintage garment and returns a structured examination — maker, era, fabric, condition — with the evidence behind every claim laid out in the open.
Built for resellers on Grailed and eBay, and for collectors who'd rather be right than confident.
Examination № WW-0247
Conflict SurfacedSignature by Levi Strauss & Co.
Era — the marks lookup and the eye disagree
2000s
Visual + archive — sub-brand launched 2003
1941–59
WPL lookup — wrong ceiling
The lookup was overruled, not obeyed.
Most tools hand you a confident answer. This one tells you when it isn't sure — and when its own lookup is wrong.
How it works
Three steps, no black box.
I
Photograph
Six frames — front, back, maker label, care label, hardware, construction — give the eye and the archive enough to work with.
II
Examine
Construction, weave, hardware and labels are read visually, then cross-checked against a maker archive — never a single lookup.
III
Price & list
Every claim carries its evidence into a draft listing, priced against comparables that share the resolved era.
Why it's different
The differentiator is candor.
Per-claim confidence
Maker, era, fabric and condition are each rated on their own evidence.
Tier is per claim, not per garment
Provenance-tiered evidence
External, independent corroboration outranks a single garment-intrinsic mark.
Independence is non-negotiable
Conflicts surfaced
When a lookup disagrees with the eye, both readings are shown, never merged.
A wrong reference is worse than none
Honest abstention
When the evidence can't decide, the tool says so instead of guessing.
Calibration over false confidence
Comparable pricing
Prices are drawn from sales that match the era the examination resolved.
The era resolution keeps pricing honest
Listing copy you can stand behind
Draft descriptions assert only what the examination actually supports.
Nothing asserted it couldn't support
Who it's for
The gap luxury authenticators leave open.
Services like Entrupy solve authentication for handbags and high-value luxury goods, at prices that make sense for a $3,000 purse. Everyday vintage menswear — the trucker jacket, the tweed coat, the OCBD — moves at reseller economics, and nobody built the honest tool for it.
A wrong reference is worse than none. So when the sources disagree, the disagreement is the answer.
- 01
Resellers
Grailed and eBay sellers who need a defensible listing, fast.
- 02
Thrift hunters
Buyers deciding in the aisle whether a piece is worth the tag.
- 03
Collectors
People who'd rather be right than confident about a date.
The study behind it
The evaluation is the product.
Before I ran a single garment, I pre-registered the method — the confidence tiers, the evidence rules, and the exact way a conflict would be scored. I wanted a result I couldn't quietly reinterpret afterwards.
Across twenty-five pieces, the tool came out one net call ahead of my own baseline. Modest — and honestly, that's the point. It also broke its own rule exactly once, and I left that failure in the write-up rather than sanding it off.
A tool that admits a single break is more useful than one that claims a flawless record. Calibration over confidence, every time.
Yes
Pre-reg
Method fixed before the first garment
+1
+1 net
Net correct calls over the baseline
1
1 break
One case where the tool broke its own rule
25
25 garments
Pieces run through the examination
Ready to examine a piece?
Walk through a full examination, end to end, with mock data.