Rare & Restricted Catalogue

The first substantial book printed with movable metal type in Europe, the technical origin of mass literacy.

Only a small original print run survives, and no copy has been offered for private sale in decades; complete copies are held permanently by institutions.

49 known copies, of which about 21 are complete

The earliest surviving complete New Testament and a primary witness for the textual history of the Greek Bible.

A single manuscript, physically divided across four institutions after its nineteenth-century removal from Saint Catherine's Monastery.

1 manuscript, split between four holders

The only source for The Method of Mechanical Theorems and Stomachion, showing Archimedes approaching infinitesimals.

The text was scraped away and overwritten as a prayer book; it is legible only through multispectral imaging and the parchment is extremely fragile.

1 manuscript

Leonardo's scientific notebook on water, fossils, the Moon's luminosity and the movement of rivers.

Privately owned rather than institutionally held; public access depends entirely on the owner lending it for exhibition.

1 manuscript, in private ownership

Contains what may be the earliest recorded use of a symbol for zero as a placeholder in an Indian mathematical text.

Seventy fragile birch-bark folios; handling is severely limited and the fragments cannot be reassembled or lent.

1 fragmentary manuscript (about 70 folios)

The oldest known biblical manuscripts and an unmatched record of Second Temple Judaism.

Thousands of fragments in extreme conservation states; originals are kept in controlled storage and shown only in rotation.

Roughly 900 manuscripts in c. 25,000 fragments

The only surviving pre-Columbian Maya books, recording astronomy, ritual calendars and divination.

Nearly all Maya codices were destroyed during the sixteenth-century Spanish campaigns; the remainder are too fragile to display continuously.

4 codices generally accepted as authentic

The largest encyclopaedia of the pre-modern world, running to over 11,000 volumes and summarising Chinese knowledge to the fifteenth century.

The imperial manuscript was never printed; the overwhelming majority of volumes were lost to fire, war and looting.

Fewer than 400 volumes known, roughly 3 per cent of the whole

A cipher-laden Latin treatise on magic owned by John Dee, whose tables were long thought lost with his library.

Only two manuscript copies were identified in the twentieth century, both in restricted special collections.

2 known manuscripts

Long debated as possible cartographic evidence of pre-Columbian Norse knowledge of North America; now documented by Yale as a modern forgery.

A unique object, held under conservation restriction and studied mainly through published analytical reports.

1 object

A primary historical document for understanding the ideology of the Nazi regime, widely used in scholarship and education.

Not physically rare, but its sale and distribution are legally regulated in several jurisdictions; annotated critical editions are the usual lawful route of access.

A landmark case in the modern history of censorship, free expression and transnational publishing.

Freely published in much of the world but formally banned from import or sale in a number of countries.