2018-S Introductory Innovation Dollar Reverse Proof
Reverse proof struck at the San Francisco Mint · 74,720 made
- Mintage
- 74,720
- Metal
- Manganese brass
- Weight
- 8.1 g
- Diameter
- 26.49 mm
Original illustration. Tap to flip. Not a photograph of the actual coin.
Face value · Metal value · Small premium · Collector premium · Significant rarity. We use bands because prices change daily.
What is a 2018-S Introductory Innovation Dollar Reverse Proof worth?
Collectors pay a real premium for this date, worn or not, because far fewer were made than usual. Uncirculated pieces go much higher.
What would make yours worth more:
- Grade and, for proofs, strong cameo contrast
- A die variety or minting error
- Certification by PCGS or NGC, which buyers expect for scarce dates
For market prices, check recent sold results for certified coins in the same grade.
Quick answers
- Is the 2018-S Introductory Innovation Dollar Reverse Proof rare?
- Fairly. The Mint made 74,720 for collectors. Most were kept in their original packaging.
- Is the 2018-S Introductory Innovation Dollar Reverse Proof silver?
- No. It's manganese brass (88.5% copper, 6% zinc, 3.5% manganese, 2% nickel). Circulating silver dollars ended with the 1935 Peace dollar. Some Eisenhower dollars with an S mint mark were made in 40% silver for collectors, but circulation Ike dollars are copper-nickel clad.
- Where is the mint mark on a 2018 American Innovation Dollar?
- On the edge, incused with the date. On this coin the mark is S, for San Francisco.
- How many 2018-S Introductory Innovation Dollar Reverse proofs were made?
- 74,720.
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 (2.1 million made).
- Judge the grade under good light. These are sold in rolls, bags and sets, so most survive uncirculated. Value depends on luster and freedom from marks.
The story of the 2018-S Introductory
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 Introductory design
The 2018 introductory coin opened the American Innovation series by honoring the idea of innovation rather than a single state. Its reverse shows George Washington's signature above the words SIGNED FIRST PATENT, accompanied by four stylized gears that stand for industry. The inscription AMERICAN INNOVATORS completes the design. Washington signed the first United States patent on July 31, 1790, granted to Samuel Hopkins for a process of making potash. That grant began the federal patent system that has protected American inventors ever since.
The American Innovation Dollar design
The obverse shows the Statue of Liberty in profile with IN GOD WE TRUST and $1. Each reverse honors an innovation or innovator from one state or territory, issued in the order the states joined the Union. The date, mint mark and E PLURIBUS UNUM are lettered on the edge, which is where to look for the mint mark.
Mintage chart
Specifications
| Series | American Innovation Dollar (2018–present) |
|---|---|
| Year | 2018 |
| Mint | San Francisco Mint |
| Mint mark | "S" |
| Strike type | Reverse proof |
| Mintage | 74,720 |
| Face value | $1 |
| Composition | Manganese brass (88.5% copper, 6% zinc, 3.5% manganese, 2% nickel) |
| Weight | 8.1 grams |
| Diameter | 26.49 mm |
| Edge | Lettered with the date, mint mark and E PLURIBUS UNUM |
| Designer | Various artists |
Other 2018 American Innovation Dollar issues
| Coin | Mintage | Type | Silver |
|---|---|---|---|
| 2018-P Introductory Innovation Dollar | 2,143,925 | Circulation strike | – |
| 2018-D Introductory Innovation Dollar | 2,148,525 | Circulation strike | – |
| 2018-S Introductory Innovation Dollar Proof | 243,567 | Proof | – |
| 2018-S Introductory Innovation Dollar Reverse Proof | 74,720 | Reverse proof | – |
Mintage: American Innovation dollars (Wikipedia, CC BY-SA 4.0), compiled from US Mint records and the Guide Book of United States Coins. How we build these pages.