Unique or nearly so, it is one of the highlights of the Smithsonian collection. A rare pattern China 1906 Gold Tael, minted for a proposed gold coinage, is another significant rarity.Ī Russia 1840 Platinum 12 Rubles is the rarest issue in this short-lived odd-denomination series.
A Korea 1906 Gold 20 Won is one of only a few known examples of this issue, struck in a Japanese style shortly before Korea was officially annexed by Japan. Several Asian rarities were also among the highlights. An Australia 1857 Proof Gold Sovereign is one of only three examples known, while a Mexico 1916 Oaxaca Gold 60 Pesos is one of a handful of survivors from an original mintage of 21 pieces. This incredible rarity was encapsulated in the NGC Oversize Holder designed for large-format coins and medals.Ī number of other important gold pieces in the Smithsonian collection were encapsulated by NGC. The group boasts a number of priceless rarities, including a Poland 1621 Gold 100 Ducat that weighs nearly one troy pound and is one of just a few examples known. The more than 100 world coins represent all six inhabited continents and nearly 500 years of history. The museum holders are not permanently sealed to allow access to museum staff and researchers. Coins are placed in pre-molded cores that are semi-rigid which are then encapsulated in a clear outer shell. The NGC Oversize Holder can accommodate coins up to 120 mm in diameter and 15 mm thick. It can accommodate coins up to 45 mm in diameter and nearly 5 mm thick. The standard NGC holder is roughly 60 mm wide by 85 mm tall. The EdgeView holder is made of inert mold-injected resin and the label, identifying the coin in it, is printed on acid-free paper. Oversized holders were customized to larger objects and new EdgeView technology makes it possible to see the coin edge.
#EDGEVIEW HOLDERS FULL#
“We are honored to make the full breadth of our expertise and our services available to the NNC and the greater numismatic community.”Įncapsulating world coinage is challenging because the size of each object varies greatly. “NGC is privileged to work with the museum to help alleviate a collections management challenge,” said Mark Salzberg, chairman of NGC. “We are pleased to be able to provide protection for our objects while at the same time extending access to the research community.” “These coins are popular for scholarly study, and now they can be handled safely through the generosity of NGC,” said John Gray, director of the museum. NGC donated their services and provided the materials necessary to rehouse the coins. The project is a collaboration between the museum and Numismatic Guaranty Corporation, which started with a pilot project in 2008 to encapsulate 200 of the most prized coins in the museum’s American coin collection. The encapsulation allows greater access to coins while ensuring their protection. The 100 coins recently encapsulated are some of the rarest and most important world coins in the museum’s collection. The Smithsonian’s National Museum of American History today announced the completion of a second project to increase the long-term preservation of the National Numismatic Collection housed at the museum through protective coin holders.
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