The 1970 Washington Quarter with no mint mark is worth anywhere from $0.25 in heavily circulated condition to over $10 in well-preserved uncirculated grades — and rare high-grade examples have sold for much more at auction. If you just found one of these coins in an old jar or wallet, you’re in the right place to find out exactly what you’ve got.
What the No Mint Mark Means on a 1970 Quarter
When you see no mint mark on a Washington Quarter, it means the coin was struck at the Philadelphia Mint. Philadelphia has a long history of not stamping its coins with a “P” — that tradition only changed in 1980 for quarters. So a 1970 quarter without any letter under Washington’s portrait is completely normal and legitimate.
The 1970 Philadelphia quarter had a mintage of 136,420,000 coins. That’s a lot, which is part of why most circulated examples are only worth face value or just a touch above. But condition matters enormously in the coin world. A coin that looks like it’s barely been touched is worth many times more than one that’s been rattled around in a piggy bank for decades.
If you’re not sure what you have, you can use a free coin identifier app to get a quick read on your coin before doing anything else. It’s a fast, easy way to start your research from home.
How Much Is a 1970 Quarter with No Mint Mark Actually Worth?
The value really depends on the grade — or the condition — of your coin. Here’s a simple breakdown to help you understand what range your coin might fall into:
| Grade / Condition | Description | Estimated Value |
|---|---|---|
| Good (G-4) | Heavy wear, design visible but flat | $0.25 – $0.50 |
| Fine (F-12) | Moderate wear, some detail remaining | $0.50 – $1.00 |
| Extremely Fine (EF-40) | Light wear on high points only | $1.00 – $3.00 |
| About Uncirculated (AU-55) | Slight wear, most luster intact | $3.00 – $6.00 |
| Mint State (MS-63) | No wear, minor surface marks | $6.00 – $12.00 |
| Mint State (MS-65+) | Gem quality, full luster, sharp strike | $15.00 – $50.00+ |
For a deeper look at certified 1970 Washington Quarter prices by grade and recent auction results, numismatic databases track real sales so you can see exactly what collectors are paying today.
What Makes Some 1970 Quarters Worth More Than Others
Beyond standard wear and tear, a few things can push the value of your 1970 Washington Quarter up significantly.
Strike quality is huge. A coin with a sharp, full strike — where every feather on the eagle and every detail of Washington’s hair is crisp — will always command a premium. Weakly struck coins from this era are common, so a beautifully struck example stands out.
Eye appeal and luster also matter. Original mint luster that hasn’t been cleaned or polished can make a big difference in grade — and in price. Cleaning a coin actually destroys its value, so if yours looks “shiny” in an unnatural way, a collector will spot that immediately.
Error coins are another story entirely. A small number of 1970 quarters were struck on 1941 Canadian quarters by mistake. These are extremely rare and can be worth hundreds or even thousands of dollars. Check your coin carefully — if the eagle side looks slightly different or you see traces of another design, you might have something special.
CoinHix is a great tool to use once you’ve assessed your coin. CoinHix provides up-to-date market pricing pulled from real collector transactions, making it easy to see what your coin is realistically worth in today’s market.
The 1970-D Quarter vs. No Mint Mark — Is There a Difference?
Yes, there’s also a 1970-D quarter, struck at the Denver Mint, which has a “D” mint mark below Washington’s portrait. The Denver version had a mintage of 417,341,364 — more than three times as many as the Philadelphia coin.
In circulated grades, both are worth about the same. But in high mint state grades, the Philadelphia no-mint-mark coin can sometimes edge out the Denver version because of slightly lower surviving populations in gem condition.
For a full breakdown of 1970 quarter value across all mint marks and grades, it’s worth comparing the two side by side before making any buying or selling decisions.
If you’re building a collection or trying to sell, CoinHix lets you track prices across multiple dates and mint marks in one place — incredibly useful when you’re dealing with common series like Washington Quarters.
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FAQ
Q: Is a 1970 quarter with no mint mark rare?
A: Not in general circulation. Over 136 million were minted in Philadelphia. However, gem-quality examples (MS-65 and above) are harder to find and can be genuinely collectible.
Q: Should I clean my 1970 Washington Quarter before selling it?
A: Absolutely not. Cleaning removes the natural patina and luster that collectors value. A cleaned coin will almost always sell for less than an untouched circulated example in the same grade.
Q: How do I know if my 1970 quarter is a rare error coin?
A: Examine the coin closely for unusual design elements, off-center strikes, double images, or traces of a different coin beneath the design. If something looks off, have it examined by a professional numismatist or submit it to a grading service like PCGS or NGC.
