My Worldwide Catalog Numbering Scheme

My Worldwide collection is primarily numbered and cataloged using the Scott Numbering system.

For each country, my inventory database tracks the Year and Scott Number. The year is “generally” when the stamp was issued, HOWEVER, many definitive series of stamps have the year listed in which the series Starts.

For instance, a definitive series that issued 20 stamps between 1950 and 1952, will all be inventoried in my system with the year 1950. This is primarily based on when Scott lists the series. In some cases I have updated the years manually, but in most cases, this “year range” holds true.

Other Catalogs

When Scott doesn’t list a number, or a variety, I utilize other catalogs for numbering according to the following scheme:

MI Michel
SG Stanley Gibbons
YT YVert & Tellier
SW StampWorld (
ZS Zumstien

Not Cataloged

Many times I will find a stamp that is not cataloged (in any catalog I have).  Usually these are Cinderellas, or other non postal stamps.

In these cases, the following scheme is used:

EBK. Major Numbers

EK.  Minor Numbers

For the EBK numbers, the format will be: “EBK.12” or whatever number indicator makes sense for that specific stamp

For Minor numbers, I will include additional info that represents what it is according to the following table.

EK.CV Color Variety
EK.DV Design Variety
EK.U Used
EK.M Mint
EK.CP Coil Pair
EK.CS Color Shift
EK.PNS Plate Number Single – EK.PNS.12345
EK.IP Imperf Pair
EK.I Imperf
EK.P Paper Variety
EK.SS Souvenir Sheet
EK.UI Unissued
EK.SV Attached Selvage
EK.F Fake or Forgery
EK.C Cancel Types or Varieties
EK.PP Private Perf
EK.OVP Overprint Variety
EK.TG Telegram Stamp
EK.BL4 Block of 4
EK.BL6 Block of 6
EK.BLPV Vertical Pair
EK.BLPH Horizontal Pair
EK.PH Phosphor
EK.PC Pen Cancel
EK.IPBK / EK.BK[T,R,B,L] Imperf edge from Booklet. Top Right Bottom or Left
EK.FD First Day Cancel
EK.PLF Plate Flaw

Note:  Sometimes, I am not consistent…  Oh well.

For multiple items of the same “type”, I will add a number.

e.g.  If I have 4 color varieties, they will be: “EK.CV1, EK.CV2, EK.CV3, EK.CV4”


Scott number 568 in 2 color varieties will be:



The “EK” number is separated from the Scott number by a dash

This holds true for cataloged minor varieties.

Scott number 568a with a color variety will be:



Covers are numbered based on the year of the postmark

For example, the first cover in my collection from 1958 would be EBK.1958   The SECOND and further covers from that year would be EBK.1958.1, EBK.1958.2, etc.   The number is based on when it was added to my collection, not the month order

Covers are also tagged in the notes with hashtags specifying details about the cover.

Cover types can be (among others):

Type Hashtag Code
Airmail #airmail
Registered #registered
Special Delivery #specialdelivery
FDC (First Day Cover) #fdc
PostageDue #due
ReturnedToSender #returned
Postcard #postcard
Meter #meter
Censored #censor
Slogan Cancel #slogan
Postal Tax #postaltax