What is 1D-2D-3D catalogs?

In the mid-70s, when Krause Publishing House first printed their catalog, till the present time, the dominant format for the catalog is hard copy.

All built on the (1D) concept of cataloging, with only two exceptions: “Banknote Book” by Owen Linzmayer, and “BANKNOTER” by Dmitry Zagorenko, which are a (2D) system.

The (3D) system, at hand, was developed primarily for use in electronic format, so, it’s perfectly suitable for on-line consumption.

 (1D) – Linear Catalogs

In the vast majority of[universal] catalogs that exist today, theinformation (indices) is organized linearly (123, 124, 125 etc.) In other words, each new issue is a new numberedindex with a letter or letters that follows it.

1-D System (Linear System)

1-D System (Linear System)

Imagine the necklace which consists of quite a large number of “beads” – “index’s numbers”. Within the short interval it can be represented as a straight line:

But since this is a closed curve, then the amount of beads that you can put on it is a finite number.  If we want to place on it some additional beads that for the early time, it will be enough places, but at some point we will rich the limit, and any new “bead” will cause this necklace to be broken.

To prevent this disaster for the time being, authors are altering some of the parameters of the “beads”, thus violate their own rules of design.

For instance: The issue of 2000 was marked up as “123a” and the next: 2005 issue with the new signature, as “123b”, etc.

The issue of 2000 was marked up as 123a and the next 2005 issue with the new signature, as 123b

The issue of 2000 was marked up as 123a and the next 2005 issue with the new signature, as 123b

The main disadvantage of this system is the impossibility of including newly discovered varieties in their proper place, as per originally adopted rules. If it was discovered the new issue of 2004 – it can be marked up as: “123A” or “123c”. In both scenarios authors are “breaking” they own rules (see picture below):

(1D) – Conflict

(1D) – Conflict

(2D): Two dimension catalogs

There are only two such modern catalogs known to the author.

The first one is “Banknote Book” (www.banknotebook.com) by Owen Linzmayer. The second one is: “BANKNOTER” (www.banknoter.com) by Dmitry Zagorenko.

Linzmayer was the first to apply the principle of two-level indexes, allowing for a more intelligent and accurate classification of existing issues. The big step forward was adding a number to each letter index: a1, a2, a3…b1, b2, b3… etc. (see picture below, at the left.)

However,the same letter index could correspond to various properties: year and date of issue, signature, color, prefix, etc. (See “red dot” at the right picture below):

(2D) Two dimension catalogs

(2D) Two dimension catalogs

2D - newly discovered issue

2D – newly discovered issue

Linzmayer was the first who created the “2D” numbering system. Adding to the existing “Number” line the second line “Index”, he greatly expanded the capabilities of the logical record. Beside this the system has its own limit of recording of information, but in much higher value than its predecessor.

With all these advantages he also contributed some confusion to the description of “Issuing Authorities”titles.

Abbreviation of the name of the I.A. is built from the first letters of its name. That is not a logical approach, because there may be multiple matches.

In general, this system of recording of indexes is much more progressive and gaining more and more supporters and followers.

(3D) Three Dimensional catalogs

The groundbreaking innovation that has solved the problem of limiting capacity of records was to choosing as a main line the calendar “Years” in lieu of ‘Numbers”. Like any technologically advanced idea, this 3-Dsystem has absorbed the only advantages of all previous 1-D and 2-D systems, and is a logical product of their “evolution”.

The three-dimensional catalog concept based on the groundbreaking innovation: choosing as a main line the calendar “Years” in lieu of ‘Numbers”:

Groundbreaking innovation -choosing as a main line the calendar Years in lieu of Numbers

Groundbreaking innovation -choosing as a main line the calendar Years in lieu of Numbers

And by applying divisions “TYPE”(A-Z) and “variation”(a-z), tying these three indexes to a particular item. [Like as precise positioning and describing of “dot” in the universe]. Without any restrictions now or in the future, this kind of approach allows to definitely classifying any existing, all new subsequent and newly discovered “beads”.

The index TYPE (denoted by capital letters) belongs to the so-called “external” component of item description. It can be: “Military Issues”, “Forgeries”, “Error Issues”, etc.  The index “variation” (denoted by low case letters) belongs to the “internal” component of each specific item. This may be a variation of sizes, colors, watermarks, etc.

Every combination of “Year-TYPE-variation” has assigned its own “d” – design number.

Also, changing any of the indexes automatically changes the design number. (See #123d6– newly discovered issue of 2003).

(3D) Three Dimensional catalogs

(3D) Three Dimensional catalogs

3D - newly discovered issue

3D – newly discovered issue

In conclusion I want to say that the 3Dcataloging, numbering and labeling system can be equally employed in any type of collection business.


Dmitriy Litvak,

Creator “Esperanto-System”

Founder “GHCS”

New York, 2014



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