Postage stamps, covers and other postal items, revenue stamps and stamp-like labels.
Stamps look alike until you measure them. The same design can exist in several perforations,
watermarks, papers and colour shades, and one of them may be worth a hundred times the others.
Good philately is careful identification, written down.
Getting Started
Pick a scope you can finish, or at least follow: one country, one period, a topic such as birds or
ships, or a single issue studied in depth. Exhibitors organise collections in the classes ordicio
uses as categories:
Catalogue numbers: Scott, Stanley Gibbons, Michel or Yvert & Tellier, always with the catalogue
named, because the numbering differs. Issues since 2002 also have a UPU WADP number.
Production details: printing method, perforation gauge (measured with a gauge, e.g. 14 x 13½),
watermark, paper and colour. These are what separate one catalogue listing from the next.
Varieties and errors: plate flaws, missing colours, imperforate pairs.
Usage: mint never hinged (MNH), hinged, no gum, used or cancelled to order, and the postmark if
it is legible.
For covers, record the route, the postage rate, the markings and the dates rather than only the
stamp: the cover’s story is what collectors of postal history look for.
Condition and Grading
Condition starts with the gum and the centering: how evenly the design sits within the
perforations. US dealers describe centering from Superb and Extremely Fine through Very Fine and Fine
to Very Good; certificates from PSE and PSAG add a numeric grade on a 100-point scale. Faults such as
thins, short perforations, creases and toning lower the value and belong in the record. For
expensive stamps an expert certificate is part of the stamp - record its issuer and number.
Care and Storage
Use stockbooks or albums with acid-free pages and clear mounts; old hinges can damage the gum.
Handle stamps with tongs, never fingers, and keep them away from sunlight, damp and heat. Store
covers flat in archival sleeves.
Mistakes to Avoid
Soaking stamps off covers that are worth more as covers.
Recording “perforated” without the gauge.
Trusting a colour name without comparing it to a colour guide in daylight.
The 16 fields worth recording for stamps & postal history, grouped as in the
ordicio app.
Identification
Country Text
Country of origin or issue, by its usual English name (historic states as named at the time, e.g. Kingdom of Bavaria).
Catalogue numbers Text
Numbers in the main catalogues with the catalogue named, e.g. Scott 245, SG 186, Michel 52, Yvert 140, WNS DE012.05.
Reference link Link
Web page about this object or its reference entry (catalogue, database, sale).
Condition
Condition notes Text
Faults, wear and damage in detail.
Certificate / expertise Text
Certificates of authenticity or expert opinions, with issuer, date and number.
Acquisition
How and when the object came into the collection.
Acquisition date Date
Date the object came into the collection.
Acquisition method Choice, or your own
How the object came into the collection.
Purchase
Auction
Gift
Inheritance
Exchange / trade
Self-collected / found
Commission
Acquired from Text
Seller, auction house (with sale and lot number), donor or place where it was found.
Purchase price Amount
Price paid including fees and premiums.
Provenance Text
Earlier owners and the object's history, oldest first, with sources (labels, invoices, sale catalogues).
Value
Estimated and insured value.
Estimated value Amount
Current market value as estimated.
Valuation date Date
Date of the current value estimate.
Valuation basis Choice
What the estimated value is based on.
Own estimate
Recent sales / auction results
Dealer offer
Catalogue value
Professional appraisal
Insurance valuation
Insured value Amount
Sum the object is insured for.
Collection record
Your own inventory data.
Inventory number Text
Your own number or label for the object, e.g. C-0042, as written on its label or album page.
Storage location Text
Where the object is kept, e.g. room, cabinet, drawer, album and page, box.
Standards and References
The data sheets follow the standards collectors, dealers and museums use:
FIP (Federation Internationale de Philatelie) exhibiting classes and regulations
Scott Standard Postage Stamp Catalogue, Stanley Gibbons, Michel, Yvert & Tellier (catalogue numbering)
PSE / PSAG numeric stamp grading (100-point scale for centering and soundness)
Universal Postal Union (UPU) WADP numbering system for stamps issued since 2002
Updated October 24, 2026
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