Adding to your collection
Looking at the catalogue
In StampData, a stamp is broadly defined as any kind of adhesive
label intended to denote payment of a fee. Stamps include postage
stamps, revenue stamps, cinderellas, forgeries, and more.
Stamps have a number of fields or properties that describe them.
Issuer - the issuer is the organization or individual producing
and selling the stamp.
Function - the purpose or usage of the stamp, such as for
airmail or parcel post.
Date - the date is the date of issue. It can be a specific day,
or only known to within a month or year.
Issue - the official purpose or definition of the stamp or group
Value - the value is the monetary value or denomination of the
print. While normally consisting of a single number and unit of
currency, it may be a sum of two values, such as for a semi-postal.
Color - a verbal description of one or more colors of the stamp,
or multi if the stamp is in full color.
Design type, design, variant - a verbal description of
the appearance of the stamp. The design type is a generic term for
multiple designs (such as waterbirds), while the design is the
design proper, and the variant describes minor variations.
Watermark - a design manufactured into the stamp paper.
Perforation - the means by which the stamps are made to be
separated from a sheet of stamps.
Overprint - additional text or design printed on top of the stamp.
Overprint color - the color of the overprint.
Original issuer - the issuer of the stamp that was overprinted.
On - the type of stamp that was overprinted.
Inscription - a text element in the design of the stamp.
Inscriptions are commonly the name of the issuer, but may also be
the function, a mention of the topic being commemorated, etc.
Imprint - a text element mentioning the designer or printer of the stamp.
Paper - the type of paper (or other material) of which the stamp is made.
Paper color - the color of the paper.
Print - text describing a particular distinctive printing of the
Plate - a plate number that is part of the design.
Emboss - a design impressed into the stamp paper.
Unissued - true of stamps that have not been officially issued.
Catalog value - information about the price paid by collectors.