1 Ounce Silver Round

silver round
(Silver rounds) 1-oz .999 fine round pieces of silver about the sizes of silver dollars. Typically, silver rounds are privately minted, as contrasted with the 1-oz .999 fine Silver Eagles that are official silver coins of the U.S. Mint.
A silver round, also known as an art round, refers to any one ounce silver bullion coin made by a private mint. They are not legal tender or official currency but have trade, barter, or numismatic value.

ounce
A unit of weight of one sixteenth of a pound avoirdupois (approximately 28 grams)
A very small amount of something
snow leopard: large feline of upland central Asia having long thick whitish fur
A unit of one twelfth of a pound troy or apothecaries' measure, equal to 480 grains (approximately 31 grams)
The ounce (abbreviated: oz, the old Italian word onza, now spelled oncia; apothecary symbol: ?) is a unit of mass with several definitions, the most commonly used of which are equal to approximately 28 grams.
a unit of apothecary weight equal to 480 grains or one twelfth of a pound

1
one: used of a single unit or thing; not two or more; "`ane' is Scottish"
one: the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch at one"
"?1" (read "Infinity Ichi"; translated as "Infinity 1") is Do As Infinity's twenty-first single, released on June 17, 2009. The band had disbanded in September 2005, but reformed three years later in September 2008.