How to value a facsimile: a guide to finding out how much your copy is worth

A facsimile of a medieval codex is a collector's item, but not all are worth the same. Two copies of the same work can differ by thousands of euros depending on their edition, condition, or accompanying materials. In this guide, we review the factors that determine their price on the secondhand market and how to calculate a realistic value.

1. The original work

The first factor is the reproduced manuscript. The best-known and most studied works, such as the Beatus manuscripts, the great illuminated Bibles, or the Codex Calixtinus, They are in higher demand and resell better than highly specialized titles.

2. The publishing house

The quality of the reproduction depends on the publisher: color fidelity, type of paper, application of gold and silver foil, binding. Specialized publishers with a long history maintain the value of their editions better. If you don't know who published your copy, the certificate or colophon of the study volume will indicate it.

3. Limited edition and number of copies

An authentic facsimile has a limited and numbered print run. The shorter the print run and the longer the edition has been out of print, the harder copies are to find and the higher their value. Numbered copies in Arabic numerals are the norm; some editions reserve a series in Roman numerals or copies "ad personam" (for individuals).

4. Certificate and documentation

The certificate of authenticity, usually notarized, verifies the print run and the copy number. Without a certificate, the value drops significantly because the buyer cannot verify that it is a genuine copy of the edition. Also, keep any invoices or documents proving ownership.

5. Integrity: case, study and accessories

Many editions include a study or commentary volume, a slipcase or box, and sometimes a lectern or plates. A complete copy is clearly worth more than one lacking the study or slipcase.

6. State of conservation

• Binding without scratches, bumps or damaged edges.
• Sheets without stains, moisture, creases or a closed smell.
• Gold and pigments without wear.
• Case in good condition.

A "like new" copy, stored in its case and unused, is the one that fetches the best price.

7. Launch price versus market price

The price at which the new edition sold is a reference point, not a guarantee. Many facsimiles sell for less than their original price on the secondhand market; however, some out-of-print and highly sought-after editions can exceed it.

How to calculate a realistic price

1. Identify the work, the publisher, the year, and the copy number.
2. Verify that you have the certificate and all add-ons.
3. Look for copies of the same edition for sale and check their condition.
4. Adjust the price according to the condition and what yours includes.

Do you want to sell your facsimile?

In it Partner Marketplace You can list it with secure payment: the buyer pays through the website and you get paid when they confirm they've received it in good condition. If you have any doubts about the value of your item, write to us and we guide you.