1999 United States Mint 50 State Quarters Silver Proof Set
Coin/Bullion (Numismatic Proof Set) · The United States Mint, San Francisco branch. The U.S. Mint is a federal agency famed for producing high-quality legal tender and collectable sets since 1792.
Pattern: 50 State Quarters Program, 1999 Inaugural Edition. This set contains the first five states: Delaware, Pennsylvania, New Jersey, Georgia, and Connecticut.
Type
Coin/Bullion (Numismatic Proof Set)
Maker
The United States Mint, San Francisco branch. The U.S. Mint is a federal agency famed for producing high-quality legal tender and collectable sets since 1792.
Material
90% Silver, 10% Copper (known as '90% Fine Silver' in U.S. numismatics). These differ from standard quarters which are copper-nickel clad.
Dimensions
Each quarter is 24.26 mm in diameter and weighs 6.25 grams (total approx. 1.004 troy oz of pure silver per 5-piece set).
Description
This is a premium silver proof set issued by the U.S. Mint to inaugurate the 50 State Quarters program. Each coin is struck in .900 fine silver, offering a brilliant luster and significant precious metal value compared to the base-metal versions found in pocket change. The set is presented in its original government packaging, designed to prevent oxidation and physical damage.
Key Features
The 'S' mint mark and the distinct silver luster. The 1999 silver set is the 'key' date for the series due to lower mintage numbers compared to later years.
Material & Composition
90% Silver, 10% Copper (known as '90% Fine Silver' in U.S. numismatics). These differ from standard quarters which are copper-nickel clad.
Finish & Decoration
Proof finish featuring frosted cameos (the raised portraits and motifs) against highly reflective, mirror-like fields. Hand-polished dies are used for striking.
Hallmarks & Stamps
The 'S' mint mark is clearly visible on the obverse to the right of Washington's ponytail, signifying production at the San Francisco Mint. Inscribed with 'LIBERTY', 'IN GOD WE TRUST', and 'QUARTER DOLLAR'.
Construction Details
Die-struck multiple times under high pressure to ensure sharp detail. The edges are reeded, revealing a solid silver color rather than the copper stripe found on clad coins.
Functional Features
Encapsulated in a sonically sealed plastic lens for protection and display. Designed for preservation of the proof finish.
Handle & Grip Details
N/A; Item is housed in a rigid protective acrylic case within a cardboard outer sleeve (not shown).
Craftsmanship Details
High-precision automated striking. The cameo effect is exceptionally well-executed, typical of San Francisco's modern proof standards.
Authentication Indicators
Correct frosted-to-mirror contrast, crisp 'S' mint marks, and the specific red (for silver) color of the lens insert which differentiates it from the blue clad sets.
Origin & Manufacturing
United States of America, San Francisco Mint, California. Utilizing specialized proof presses and automated packaging.
Era & Period
Modern Numismatic Era (1999-2008 State Quarter period). This represents the first year of the most successful coin program in history.
Age Estimate
1999. The date is confirmed by the specific set of states included and the '© 1998 U.S. MINT' text on the lens.
Cultural Significance
The program revitalized coin collecting in America, encouraging millions of citizens to pay attention to pocket change and the history of the 50 states.
Condition Notes
Excellent to Gem Proof. The coins appear well-struck with no visible tarnish or milky spots. The acrylic lens shows minor surface scuffs but remains clear.
Value Estimate
$30.00 – $50.00 USD, depending on the presence of the original cardboard outer box and current silver spot price.
Care & Maintenance
Keep inside the original plastic lens. Do not attempt to open the case, as skin oils will ruin the proof finish. Store in a cool, dry place away from sunlight.
Similar Pieces
1999 Clad Proof Set (identifiable by the green/blue packaging and copper-edged coins) and 2000-2008 Silver Proof Sets.
Interesting Facts
The 1999 Silver Proof Set remains one of the most sought-after by collectors because the initial production was lower than the subsequent demand, leading to a surge in secondary market prices.