Hobbies And Interests
Identity Matters
You need to identify your stamp in order to find out if it is a rare issue. This requires a stamp catalog such as the Scott Specialized or Scott Worldwide. Most stamps state the country that issued them and their postage value in the country's currency, and have a design featuring motifs such as national rulers, national heroes, important national or cultural events or national landmarks. You can use these design elements to locate your stamp in the catalog. All United States stamps and many foreign stamps have been assigned a Scott catalog number, which is used to identify stamps being offered for sale. Catalog entries identify the rare issues.
Rarity Counts
The rarity of any stamp is determined by the number originally printed and the number known to have survived to the present day. According to the stamp collectors at Weuropeanhistory.Suite101.com, the rarest stamp in the world is the British Guiana (now Guyana) one-cent magenta of 1852, of which only one specimen is known to exist. The rarest U.S. stamp is the 1867 blue one-cent Ben Franklin stamp with a Z grill (Scott 85A), of which only two specimens exist.
Status, Condition and Grade
A stamp's status, condition and grade are major factors in determining stamp value. Status refers to whether a stamp is unused or used. Stamps that have not been used for postage and which have intact original gum (the adhesive) generally are worth more than those that have been postally used. Condition refers to the overall appearance of the stamp, such as whether perforation teeth are missing or the stamp has stains, tears, creases, folds or faded areas. Grade refers to how well the stamp's design is centered on the paper. Most stamps are slightly off-center in one or more directions. A perfectly centered stamp is worth more than an off-center specimen.
Used Stamps
The fact that a stamp has been used for postage doesn't mean it's worthless, say the folks at 2-Clicks-Stamps. Some of the rarest postage stamps are only known through used specimens. When a stamp is used for postage, the postal system applies black postmarks in indelible ink to indicate this stamp has been postally used. These postmarks are known as cancellations. Stamps can be lightly cancelled, where the design elements are mostly visible, or heavily canceled where the design can barely be made out. Lightly canceled stamps generally are worth more than heavily canceled specimens. U.S. postmasters in the 19th century sometimes made up their own fancy postmarks from rubber or cork, and the postage stamps they canceled with these fancy markings are collected as a specialty.
Postal History
Stamps whose history can be traced are particularly fascinating to some collectors. Stamps that are still on their original addressed envelopes may offer insight into where the stamp has been. Another type of postal history envelope is called a first day cover. These bear a stamp that was canceled on the first day of issue in a city having special significance to the subject of the stamp, such as the birthplace of a national hero being honored on the stamp. Other postal history envelopes were carried on historic voyages or were otherwise linked to historic events.