Backstamp: Hallmark Identifier
iOS app by Andris Zimelis. Reference · Andris Zimelis
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.0
- Listing last refreshed
- 2026-09-11
View the original store listing
Store description excerpt
Photograph the mark on the bottom. Backstamp reads what that mark means: solid or plated, genuine standard or reproduction, 1890s or 1970s — and the typical sold range for pieces carrying it. It isn't a list you search. Backstamp reads the mark you're holding, then shows you the exact characters it matched on — so you can check its work. THE TRAPS IT CATCHES Most people misread the same marks: • "1847 Rogers Bros" — a founding year, not a date, and the piece is silverplate • EPNS, Alpaca, nickel silver — no solid silver in any of them • "22 KT GOLD" on china — that's paint, not bullion • "WedgEwood" with an extra E — not the real firm WHAT'S FREE Everything: three decodes a day, with no account — plus the full marks library, the field guide and the British date-letter tool, permanently unlocked. WHAT YOU GET • A verdict in seconds, with the characters it matched on • Purity standards, assay symbols, self-dating country marks, and the makers that matter • A date-letter tool that turns one British hallmark letter into its candidate years • A ledger of every find, with what you paid beside what the mark suggests • Typing a mark works offline — library, guide and decoder live on your phone. Photo scanning needs a connection. Backstamp is a research aid, not an appraisal. Estimates reflect typical sold prices for pieces in good condition — condition, pattern and size move them. Backstamp shows you the range and the evidence behind it, in seconds, on the mark in your hand.
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