Reference
Famous Stamps
Illustrated profiles of the world's most famous and valuable stamps — how to identify each one, its history and an estimated value.
FamousRareValue
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Use the app alongside these guides for faster verification:
Stamp Identification & Valuation Guides
Identify stamps by photo, date old issues, grade condition and check prices — plus coins, banknotes, catalogues and a free collection editor.
Free tool
Collection Editor
Open your StampID backup on a computer: view every item, correct details, bulk-edit and manage albums, then send the changes back to the app. Scan a QR code to start — end-to-end encrypted.
ToolCollectionEdit
Open the editor
9 min read
How to Identify Stamps by Photo
A practical end-to-end process for capturing better images, validating AI results, and documenting evidence.
PhotoWorkflowVerification
Read guide
11 min read
Stamp Value Checker Guide
Turn IDs into realistic low-mid-high price ranges using condition scoring and sold-market comparison.
ValuationConditionSales comps
Read guide
10 min read
How Much Is My Stamp Worth?
Step-by-step guide to checking stamp values. Covers identification, condition grading, market pricing, and what to do with inherited collections.
ValuationBeginnerInherited
Read guide
12 min read
Rare Stamps Worth Money: What Actually Matters
Understand scarcity, demand, condition sensitivity, and common mistakes that lead to false rarity claims.
RarityRisk controlCatalog logic
Read guide
14 min read
5 Most Valuable Stamps in the World
The stories behind the world's most expensive stamps: British Guiana 1c Magenta, Inverted Jenny, Treskilling Yellow, Mauritius Post Office and Penny Black.
RarityHistoryValuation
Read guide
10 min read
How to Identify Old Stamps
A structured method to date classic issues by paper, printing, postmarks, and era-specific design cues.
HistoricalDatingAuthentication
Read guide
11 min read
How to Identify US Stamps
Complete guide from 1847 classics to modern Forever stamps. Scott catalog, errors, and era identification.
USRegional
Read guide
10 min read
How to Identify Stamp Watermarks
Use backlighting and safe watermark methods to separate similar-looking but differently priced issues.
TechnicalWatermark
Read guide
10 min read
Stamp Perforation Guide
Learn how to measure perforation gauges, understand compound perfs, and identify varieties that affect value. Includes a free printable perforation gauge (PDF).
TechnicalPerforation
Read guide
9 min read
Postage Stamp Catalog Basics
Understand Scott, Stanley Gibbons, Michel and Yvert catalog systems, numbering, and how to interpret listings.
CatalogReference
Read guide
11 min read
Coin Identification Guide
Identify coins by obverse/reverse clues, mint marks, date variants, grading scales, and error types.
CoinsGrading
Read guide
10 min read
Banknote Identification & Value Guide
Grade and price paper money using security features, serial number varieties, and condition assessment.
BanknotesValuation
Read guide
8 min read
How to Appraise Collectibles by Photo
Get better appraisal accuracy from photos with proper capture standards, detail shots, and documentation.
PhotoAppraisal
Read guide
12 min read
How to Identify British Stamps
From the Penny Black to Machin definitives. Identify UK stamps by monarch, era, watermark and SG number.
UKRegional
Read guide
11 min read
How to Identify French Stamps
From Ceres classics to Marianne definitives. Identify French stamps by design type, era and Yvert number.
FranceRegional
Read guide
12 min read
How to Identify German Stamps
From German States to reunification. Navigate Germania, inflation overprints, BRD and DDR issues.
GermanyRegional
Read guide
16 min read
How to Identify Polish Stamps
From Poland No. 1 to modern Poczta Polska. Decode the 1918 overprints, Port Gdańsk, groszy overprints and Fischer numbers.
PolandRegional
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15 min read
How to Identify Danish Stamps
From the 1851 Rigsbank Skilling to Margrethe II. Inverted frames, wavy lines, watermarks and AFA numbers explained.
DenmarkRegional
Read guide
17 min read
How to Identify Spanish Stamps
From Isabel II to the euro. Date any Spanish stamp by inscription, currency, cancel and the five Alfonso XIII portraits, with Edifil numbers.
SpainRegional
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