Postage stamps are some of the most widely collected items in the world. The seemingly ordinary objects can be worth millions of dollars and generate lots of buzz among the philately (stamp collecting and study of postage stamps) community. Most of the rarest stamps were errors or were issued under very unique/special circumstances. All of the stamps on this list currently exist in very small quantities and they are either held in private or museum collections.
Baden 9 Kreuzer Error
Estimated Number in Existence: 5
Country of Origin: German State of Baden
Date of Production: 1851
Reason for Rarity: Color Error
Current Value: €1,524,601.50 (about $1.73 million) (price paid at auction in 2019)
The Baden 9 Kreuzer Error stamp is one of Germany’s rarest and most valuable stamps. In 2019, longtime stamp collector from the United States discovered the rare stamp from the old German state of Baden neatly mounted on an album page in his worldwide collection. This is the fifth known Baden 9 Kreuzer Error stamp. The collector immediately put the stamp up for auction and it sold for €1,524,601.50 (about $1.73 million)! The Baden stamps are rarities because they were printed on blue green paper instead of the correct rose color.
2¢ Large Queen on Laid Paper
Estimated Number in Existence: 3
Country of Origin: Canada
Date of Production: 1868
Reason for Rarity: Rare printing on laid paper
Current Value: $250,000 (price paid at auction in 2014)
The 2¢ Large Queen on Laid Paper is Canada’s rarest and most valuable stamp. The stamps are so special because they were printed on less desirable laid paper (paper with ribbed texture caused by the manufacturing process) instead of the more typical wove paper. The first 2¢ Large Queen on Laid Paper stamp was not discovered until 1925 and only two additional stamps have turned up so far. The most recently found stamp was sold for about $250,000 in 2013.
Edward VII 6d Pale Dull Purple
Estimated Number in Existence: 3
Country of Origin: United Kingdom
Date of Production: 1904
Reason for Rarity: Only 19 sheets were printed
Current Value: £400,000 (about $469,000) (price paid at auction in 2010)
The Edward VII 6d Pale Dull Purple stamp is on of Britain’s rarest stamps. The stamp was issued in 1904 on the same day that official order came into effect withdrawing all official stamps from use. Only 19 sheets were printed by the time the order came out, which means that very few of these stamps have survived. Currently there are only three known examples of the Edward VII 6d Pale Dull Purple stamp. In 2010, the rare British stamp was sold for £400,000 (about $469,000). The other existing stamps are in museums or private collections.
10¢ on 9 Candareen Inverted
Estimated Number in Existence: 3
Country of Origin: China
Date of Production: 1897
Reason for Rarity: Only few stamps feature surcharge mark
Current Value: HK$6,100,000 (about $770,000) (price paid at auction in 2019)
In 2019 a rare unused 1897 10¢ on 9 Candareen stamp from China sold for a record HK$6,100,000 (about $770,000). The stamp is the rarest and most valuable from the “Empress Dowager” issue. There are only three known examples of the 10¢ on 9 Candareen and only the one sold in 2019 is unused. The stamps are rare because they feature an10¢ surcharge mark on what was actually an inverted 9-candareen stamp. In 1897, China’s new Imperial Postal Service decided to start using cents and dollars instead of candareens, but the new stamps took awhile to produce. As a temporary measure, the 9-candareen stamps were marked with the new 10¢ surcharge.
15¢ Lincoln Z Grill
Estimated Number in Existence: 2
Country of Origin: United States of America
Date of Production: 1867
Reason for Rarity: Z Grills were quickly retired by USPS
Current Value: $1.61 Million (price paid at auction in 2019)
Although the 1¢ Benjamin Franklin Z Grill stamp is considered more valuable, the 15¢ Lincoln Z Grill is just as rare. Only two of the Lincoln Z Grill stamps have turned up and one sold in 2019 for $1.61 million, setting a new record for a single American stamp. Like other Z Grill stamps, the Lincoln Z Grill is rare because the United States Postal Service quickly retired its Z grills, which were used to mark stamps as used.
Benjamin Franklin Z Grill
Estimated Number in Existence: 2
Country of Origin: United States of America
Date of Production: 1868
Reason for Rarity: Z Grills were quickly retired by USPS
Current Value: $3 Million (traded for rare stamps worth $3 million in 2005)
The Benjamin Franklin Z Grill is the most valuable American stamp, worth an estimated $3,000,000. While 1¢ Benjamin Franklin stamps are common, there are only two known examples with a Z Grill mark. The Z Grill was one of several embossed grill patterns used to break the fibers of certain early U.S. stamps. Grilling allows the cancellation ink to be readily absorbed into the paper, thus preventing people from reusing the stamps via washing out the cancellation marks. After two years, the grills were retired because they were impractical, which is why the Benjamin Frank Z Grill stamps are so rare.
Lost Continental
Estimated Number in Existence: 1
Country of Origin: United States of America
Date of Production: c.1873
Reason for Rarity: Unique copy proved to have been printed by the Continental Banknote Company
Current Value: $325,000 (price paid at auction in 2004)
The Lost Continental, which features the bust of General Winfield Scott, is the rarest stamp printed by the Continental Banknote Company (CBNC). It is the only surviving example of the 24¢ stamp produced by the Continental Banknote Company instead of the National Banknote Company (NBNC). All other extant 24¢ stamps featuring General Scott from this time period were made by the NBNC. For more than a century experts could not prove that this particular stamp was actually printed by the CBNC, but it was finally certified in 1992. Since no one knows for sure how many other Lost Continentals may be hiding out there, the stamp only sold for $325,000, which is relatively low compared to most of the other stamps on this list.
Alexandria “Blue Boy” Postmaster Provisional
Estimated Number in Existence: 1
Country of Origin: United States of America
Date of Production: 1847
Reason for Rarity: Only one produced
Current Value: $1.18 Million (price paid at auction in 2019)
The Alexandria “Blue Boy” Postmaster Provisional is one of the rarest stamps from the United States. The rare stamp dates back to just before the U.S. began issuing national postage stamps. Although the introduction of a national stamp system officially prohibited the use of the provisional stamps, the Alexandria Blue Boy was still valid in Alexandria, when it was in the process of being retroceded from the District of Columbia to the state of Virginia. The Alexandria Blue Boy was last sold in 2019 for $1.18 million.
Treskilling Yellow
Estimated Number in Existence: 1
Country of Origin: Sweden
Date of Production: 1855
Reason for Rarity: Color Error
Current Value: 2.8 Million Swiss Francs (about $2.3 million) (last known sale price); sold again in 2013 for undisclosed amount
The Treskilling Yellow is another rare mid-19th century stamp that is worth millions of dollars. The stamp is a rare printing error as Sweden’s three-skilling stamps were normally printed in a blue-green color. The eight-skilling stamp was printed in a yellowish orange, which is the color of the rare Treskilling. No one actually knows the current value of the Treskilling Yellow because the amount it sold for during its last few sales has remained private. It was sold in 1996 for 2.8 million Swiss Francs (about $2.3 million) and the stamp was reportedly sold for at least that much in 2010. In 2013, the Treskilling Yellow was acquired by Count Gustaf Douglas, a Swedish nobleman and politician for an undisclosed amount.
British Guiana 1¢ Magenta
Estimated Number in Existence: 1
Country of Origin: Guyana (formerly British Guiana)
Date of Production: 1856
Reason for Rarity: Very limited printing
Current Value: $9.48 Million (price paid at auction in 2014)
The British Guiana 1¢ Magenta is the rarest and most valuable stamp in the world. The deceptively valuable stamp isn’t much to look at, as it’s just octagonal scrap of magenta paper bearing a postmark and illustration of a three-masted ship. However, there is only one in existence and it sold for an eye-popping $9.48 million in 2014! The stamp is so special because it was issued as an emergency by the Postmaster of British Guiana at the time, E.T.E. Dalton, after an expected delivery of proper stamps from Great Britain did not arrive. Although Dalton issued specifications about the design, the printer chose to add a ship image of their own design. To prevent forgery, Dalton ordered that all correspondence bearing the stamps be autographed by a post office clerk. So far, no other copy of the British Guiana 1¢ Magenta has ever turned up.
This article originally appeared on Rarest.org.
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