Terms of Use

Last updated: 22 August 2026.

1. Who runs this site

CurioFeed is published by an independent sole trader established in Spain, trading as TEKY. Contact: the contact form.

Identification details as required by Spanish Law 34/2002 (LSSI-CE), Art. 10, are in the image above.

2. Using this site means accepting these terms

By browsing CurioFeed or using its calculators you accept these Terms of Use and our Privacy Policy. If you do not accept them, please do not use the site. We can change these terms; the version published here is the one that applies, and the date above says when it last changed.

3. What the numbers on this site are — and what they are not

This is the most important paragraph on the site, so it is not buried: the calculators give you the value of the METAL, not the value to a collector, and nothing here is investment advice.

• Melt value is a floor, not a price. A coin or a piece of jewelry is often worth several times — sometimes hundreds of times — the metal inside it. Dates, mint marks, errors, condition, provenance and demand all trade far above melt, and melting destroys that premium permanently. Treat our number as the floor under the object, never as what it is worth.
• It is not an appraisal. We have not seen your item, weighed it, or tested its purity. Only a qualified appraiser, dealer or grading service can tell you what you actually have.
• It is not an offer. We do not buy, sell, broker, value for a fee, or trade anything. No dealer is obliged to pay you what a calculator here says — refiners and buyers pay a percentage of melt, and that percentage is their business, not ours.
• It is not financial or investment advice. Nothing on CurioFeed is a recommendation to buy, sell or hold gold, silver, coins, banknotes or any other asset, and nothing here predicts a future price. We are not a licensed financial adviser, broker or dealer, in any country. If money matters to your decision, talk to a professional who is.
• Prices are delayed and approximate. Spot prices come from a third-party feed and are cached; they can be minutes or hours old, and they can be wrong. The time each figure was last updated is shown next to it. Where our sources disagree by more than a small margin, we say so rather than pick one.
• Serial-number data is a record, not a valuation. Our star note information comes from official production records. A note being in a small print run does not mean anyone will pay more for it.

Decisions you make with these numbers are yours. To the fullest extent the law allows, we accept no liability for loss arising from relying on them.

4. Where our data comes from

The full explanation is on the Methodology page. In summary:

• Banknote production data is derived from the Monthly Production Reports of the U.S. Bureau of Engraving and Printing. Works of the US federal government are in the public domain (17 U.S.C. §105). We parse, structure and check that data ourselves; mistakes in our version are ours, not the BEP’s, and this site is not affiliated with, endorsed by, or connected to the Bureau of Engraving and Printing, the Federal Reserve, the U.S. Treasury or any government body.
• Live metal prices come from a commercial market-data provider, cached on our own servers and cross-checked against a second, independent source.
• Coin specifications (weight, fineness, years of issue) are compiled from published catalog data, including Numista, used under its terms with attribution.

If you find an error, tell us — we correct data errors and say on the page when we do.

5. Advertising

CurioFeed is free and paid for by advertising served through Google AdSense. Ads are labeled as ads. We are not paid to recommend any dealer, refiner or marketplace, and an advertiser appearing on a page has no influence over what that page says. If that ever changes, it will be disclosed on the page itself.

6. What you may do with the content

The text, design, database structure and calculator code on CurioFeed belong to their owner and are protected by copyright. You are welcome to:

• use the calculators for your own purposes, personal or commercial;
• quote short excerpts and figures, with a link back to the page you took them from.

You may not republish the site’s databases wholesale, scrape it systematically, or present its content as your own. Automated access that degrades the service for others is not allowed.

7. Availability and links out

We do our best to keep the site accurate and available, but we do not guarantee that it will be uninterrupted, error-free, or that any particular figure is correct at any given moment. The site is provided “as is”. Pages sometimes link to other websites; we do not control them and are not responsible for their content or their privacy practices.

8. Liability

To the fullest extent permitted by law, we are not liable for indirect or consequential loss, loss of profit, or loss arising from decisions made using information on this site. Nothing in these terms limits any right you have as a consumer that cannot be limited by law, and nothing excludes liability for fraud, death or personal injury caused by negligence.

9. Copyright complaints

If you believe something on this site infringes your copyright, write to us through the contact form with enough detail to identify the work and the page. We remove genuinely infringing material promptly.

10. Law and jurisdiction

These terms are governed by Spanish law, and the courts of the owner’s domicile in Spain have jurisdiction. If you are a consumer resident in the European Union, this does not deprive you of the protection of the mandatory rules of your own country, and you may bring proceedings in the courts of your place of residence.