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The front of a U.S. Marine Corps birthday ball medallion Huguenot méreau used as a challenge coin during 17th century Protestant persecution in France. A challenge coin is a small coin or medallion, bearing an organization's insignia or emblem and carried by the organization's members. Traditionally, they might be given to prove membership ...
A coin catalog (or coin catalogue) is a listing of coin types. Information may include pictures of the obverse and reverse (front and back), date and place of minting, distribution type, translation of inscriptions, description of images, theme, metal type, mintage, edge description, orientation of the coin, weight, diameter, thickness, design credentials, shape and prices for various grades.
Galactose-α-1,3-galactose, commonly known as alpha gal and the Galili antigen, is a carbohydrate found in most mammalian cell membranes. It is not found in catarrhines , [ 1 ] including humans, who have lost the glycoprotein alpha-1,3-galactosyltransferase ( GGTA1 ) gene.
A challenge coin, tucked in the palm of In a matter of a split second, the entire exchange is over, and the people who witnessed the covert operation often never even knew it happened.
Media in category "Challenge coins" The following 2 files are in this category, out of 2 total. JAGcoin.png 421 × 237; 136 KB. YDCoinReverse.jpg 299 × 305; 95 KB
A brockage results when a coin is stuck in the collar and another planchet enters the collar and is pressed against the coin already minted. The details of the coins produced have the appearance of mirror images of the obverse and reverse. A die cap is a coin that has been stamped a number of times and has the appearance of a soda cap.
Coin roll hunting is about searching through rolls of coins to find valuable ones. Depending on the rarity, condition and historical value, the coin you find could be worth a decent amount at the ...
α-Galactosidase ( EC 3.2.1.22, α-GAL, α-GAL A; systematic name α-D-galactoside galactohydrolase) is a glycoside hydrolase enzyme that catalyses the following reaction: [1] Hydrolysis of terminal, non-reducing α- D -galactose residues in α- D -galactosides, including galactose oligosaccharides, galactomannans and galactolipids