Transparency

Editorial policy, sources, and valuation

Notofilia puts the catalog and research first. When a news item cites a price, we say what kind of figure it is — and what it is not.

What we publish

News items are curated summaries of external sources (media, auction houses, central banks, museums). Each news item states Source: with a link to the original article. The blog holds original guides. Collections such as Colombia document private pieces that are not for sale.

A ficha is the catalog entry; a banknote is each documented specimen (one ficha may hold several); a page is the indexed URL. The figures in the footer and on the homepage are calculated at build time from the collection; they are never typed by hand.

Editor

Notofilia is edited by Yezid Acosta, founder of the private catalog and responsible for record research, valuation labels, and corrections. When an article says “Reviewed by”, that is this responsibility. Public profile: Yezid Acosta.

Mention on Wikipedia

The article Notaphily on Spanish Wikipedia (opens in a new tab) lists Notofilia.com under External links (verified 16 August 2026). The href points to a May 2013 archive.org snapshot (opens in a new tab) of http://www.notofilia.com/, not to https://notofilia.com/. Like every MediaWiki external link, it carries rel="nofollow": it is a verifiable encyclopedic mention, not a PageRank backlink. We do not edit Wikipedia about ourselves.

Corrections policy

Factual errors, mislabeled figures, or incorrect attributions are corrected on the affected piece. Each material correction is listed in that page’s history (date + description). If the change is substantial, we also update the “Last updated” date.

Dates and updates

Publication date: when the note appeared on Notofilia.
Last updated: the last substantial review of the content.
Correction history: material changes (figures, attributions, facts) are listed on the piece itself.

Valuation standard

Every price figure in a news item or guide must be labeled with one of these kinds. The About this figure callout appears when the article is price-related:

Asking price (listing): The amount cited is a third-party asking price, not a verified sale. Real value depends on authenticity, variety, grade, and demand.
Dealer estimate: The figure is a dealer estimate or quote, not necessarily a closed transaction. Authenticity, variety, grade, and demand can change the outcome.
Catalog valuation: This is a catalog or price-guide valuation. It is not a bid or a hammer price; the market may sit above or below it.
Melt value: The amount reflects intrinsic metal value (melt), not the collectible value of the piece. Authenticity, rarity, and grade usually outweigh metal alone.
Documented auction result: The figure is a documented auction result for a specific specimen (grade, certification, and date). Similar pieces can hammer for different amounts.
Auction record: This cites a reported auction record or ceiling for a variety or grade. It does not mean an ordinary example will reach that figure.
Figure reported in the press: The figure comes from a secondary outlet or spokesperson and has not been verified by Notofilia as a closed sale. Real value depends on authenticity, variety, grade, and demand.

Primary sources and hammer evidence

We prefer to link the original outlet, the auction-house archive, the catalog record, or the official release. A viral listing or a sensational headline does not replace a documented hammer. When we cite an auction result we give currency, valuation date, and, when it exists, a link to the evidence.

Catalog sources

Virtual Collection records are re-documented in Search Console traffic order, not catalog order. We do not try to rewrite the inventory in one pass.

Citation order:

Central banks (Nepal Rastra Bank; Banco de la República for Colombian material, the largest group of records).
Printers and museums (Note Printing Australia, Reserve Bank of Australia, mint archives).
Auction archives.
Commercial sites (Banknote World and similar) only as a last resort, never as the default source.

An unsourced fact on a showcase record is worse than “unconfirmed”. That value is valid and visible on Print run, Known varieties, Circulation dates, Basis of rarity, State of the specimen shown, and Date of last factual review. It distinguishes the catalog from sites that invent the figure.

Re-documented records are not published if most of their citations are dealer sites. Wikipedia and reseller listings do not replace a central-bank or printer report.

What we do not do

We do not appraise readers’ pieces or issue purchase offers.
We do not present asking prices as closed sales.
We do not use Product markup on collection records: the pieces are not sold here.
We do not duplicate the same news item just because another outlet repeated it; we update the existing piece if it adds new facts.

How to report an error

If you spot a mislabeled figure, a broken source, or an incorrect fact, write to us through Notofilia’s contact form. We will publish the correction in the history of the affected piece.

Privacy

Personal-data processing is described in the Privacy and Cookie Policy.