America the Beautiful Quarter · Quarters

2018-S Cumberland Island Quarter Proof

Proof struck at the San Francisco Mint · 603,747 made

Proof
Mintage
603,747
Metal
Copper core clad in 75% copper / 25% nickel
Weight
5.67 g
Diameter
24.26 mm

Original illustration. Tap to flip. Not a photograph of the actual coin.

Copper content5.20grams
Value band: Small premium

Face value · Metal value · Small premium · Collector premium · Significant rarity. We use bands because prices change daily.

What is a 2018-S Cumberland Island Quarter Proof worth?

Age alone gives this coin a small premium, even worn. Sharp details and original surfaces push it higher.

What would make yours worth more:

  • Grade and, for proofs, strong cameo contrast
  • A die variety or minting error

For market prices, check recent sold results for certified coins in the same grade.

Quick answers

Is the 2018-S Cumberland Island Quarter Proof rare?
Not especially. The Mint made 603,747 for collectors. Most were kept in their original packaging.
Is the 2018-S Cumberland Island Quarter Proof silver?
No. It's copper core clad in 75% copper / 25% nickel. Quarters dated 1964 and earlier are 90% silver.
Where is the mint mark on a 2018 America the Beautiful Quarter?
On the obverse, to the right of Washington's ribbon. "W" quarters were struck in 2019 and 2020 and released into circulation in small numbers. On this coin the mark is S, for San Francisco.
How many 2018-S Cumberland Island Quarter proofs were made?
603,747.
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What to check on your 2018-S

  • Make sure the mint mark really is an S. A worn or filled mark can be misread. It's what separates your coin from the 2018-P (138 million made).
  • Judge the grade under good light. Look for luster and freedom from bag marks. "W" quarters in circulation are worth a premium even in average condition.

Proofs from 2018 come with and without frosted devices. Coins with strong contrast are labeled Cameo or Deep Cameo and are worth more.

The story of the 2018-S Cumberland Island

Elsewhere in US coinage in 2018

The American Innovation dollar program began, with a new reverse for each state and territory celebrating an invention or innovator.

How to recognize it

The Cumberland Island design

Georgia's Cumberland Island National Seashore is the fourth design of 2018, showing a snowy egret perched on a branch at the edge of a salt marsh, ready for flight. Cumberland is the largest of Georgia's barrier islands. The national seashore, established in 1972, protects its beaches, dunes, marshes and maritime forest, along with historic sites such as the Dungeness ruins. Donna Weaver designed the reverse, which Don Everhart sculpted.

The America the Beautiful Quarter design

Each reverse shows a national park or other national site, one for every state, the District of Columbia and five territories, with the site's name, its state and E PLURIBUS UNUM. Five designs were issued each year from 2010 to 2020, followed by a final design for the Tuskegee Airmen in 2021. The obverse uses a restored, more detailed version of Flanagan's original Washington portrait.

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Mintage chart

America the Beautiful Quarter circulation mintagesLog scale · hover or tap a bar · 2010–2021
1M10M100M

Specifications

SeriesAmerica the Beautiful Quarter (2010–2021)
Year2018
MintSan Francisco Mint
Mint mark"S"
Strike typeProof
Mintage603,747
Face value25¢
CompositionCopper core clad in 75% copper / 25% nickel
Weight5.67 grams
Diameter24.26 mm
EdgeReeded
DesignerVarious (obverse restored from John Flanagan's original)

Other 2018 America the Beautiful Quarter issues

CoinMintageTypeSilver
2018-P Pictured Rocks Quarter186,714,000Circulation strike–
2018 Pictured Rocks 5 oz Silver Bullion Coin30,000Circulation strike5.000 oz
2018-P Apostle Islands Quarter223,200,000Circulation strike–
2018 Apostle Islands 5 oz Silver Bullion Coin30,000Circulation strike5.000 oz
2018-P Voyageurs Quarter237,400,000Circulation strike–
2018 Voyageurs 5 oz Silver Bullion Coin30,000Circulation strike5.000 oz
2018-P Cumberland Island Quarter138,000,000Circulation strike–
2018 Cumberland Island 5 oz Silver Bullion Coin52,500Circulation strike5.000 oz
2018-P Block Island Quarter159,600,000Circulation strike–
2018 Block Island 5 oz Silver Bullion Coin80,000Circulation strike5.000 oz
2018-P Pictured Rocks 5 oz Silver Bullion Coin (Burnished)17,598Collector uncirculated5.000 oz
2018-P Apostle Islands 5 oz Silver Bullion Coin (Burnished)16,004Collector uncirculated5.000 oz
2018-P Voyageurs 5 oz Silver Bullion Coin (Burnished)15,596Collector uncirculated5.000 oz
2018-P Cumberland Island 5 oz Silver Bullion Coin (Burnished)14,153Collector uncirculated5.000 oz
2018-D Pictured Rocks Quarter182,600,000Circulation strike–
2018-D Apostle Islands Quarter213,400,000Circulation strike–
2018-D Voyageurs Quarter197,800,000Circulation strike–
2018-D Cumberland Island Quarter151,600,000Circulation strike–
2018-D Block Island Quarter159,600,000Circulation strike–
2018-S Pictured Rocks Quarter Uncirculated946,617Collector uncirculated–
2018-S Apostle Islands Quarter Uncirculated904,321Collector uncirculated–
2018-S Voyageurs Quarter Uncirculated882,666Collector uncirculated–
2018-S Cumberland Island Quarter Uncirculated896,361Collector uncirculated–
2018-S Block Island Quarter Uncirculated870,361Collector uncirculated–
2018-S Pictured Rocks Quarter Proof637,779Proof–
2018-S Apostle Islands Quarter Proof603,747Proof–
2018-S Voyageurs Quarter Proof603,747Proof–
2018-S Cumberland Island Quarter Proof603,747Proof–
2018-S Block Island Quarter Proof621,466Proof–
2018-S Silver Pictured Rocks Quarter Proof461,053Proof0.1808 oz
2018-S Silver Apostle Islands Quarter Proof461,053Proof0.1808 oz
2018-S Silver Voyageurs Quarter Proof461,053Proof0.1808 oz
2018-S Silver Cumberland Island Quarter Proof461,053Proof0.1808 oz
2018-S Silver Block Island Quarter Proof461,053Proof0.1808 oz
2018-S Pictured Rocks Quarter Reverse Proof199,177Reverse proof–
2018-S Apostle Islands Quarter Reverse Proof199,177Reverse proof–
2018-S Voyageurs Quarter Reverse Proof199,177Reverse proof–
2018-S Cumberland Island Quarter Reverse Proof199,177Reverse proof–
2018-S Block Island Quarter Reverse Proof199,177Reverse proof–
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Mintage: America the Beautiful quarter mintage figures (Wikipedia, CC BY-SA 4.0), compiled from US Mint records and the Guide Book of United States Coins. How we build these pages.