AHebrew Bible more than 1,000 years old and described as "one of the most important and singular texts in human history" will go on show later this month, before going under the hammer.

The Codex Sassoon, dating to the late 9th to early 10th, is believed to be the earliest and most complete Hebrew Bible.

It will be on show at Sotheby's in London from February 22-28, followed by an exhibition tour to Israel and the US. It will go up for auction in New York in May, where it is expected to fetch between $30 million and $50 million.

Sharon Mintz, Sotheby's senior Judaica specialist, books and manuscripts, told CNN Wednesday that “this is the most important document to come to auction ever.”

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Mintz said this "astonishing record" is likely to generate huge interest from bidders. "This is the most significant document that I have ever had the pleasure of examining, researching [and] holding,” she added.

The Hebrew Bible is the foundation of the three Abrahamic faiths: Judaism, Christianity and Islam.

Scholars have long been aware of the codex named after renowned Judaica collector David Sassoon (1880-1942), but it has remained largely out of public view, Sotheby's said in a press release Wednesday.

Consisting of 792 parchment pages -- made from animal skins -- and weighing about 26.5 pounds, Mintz described it as a “lavish production that only the wealthiest could have afforded.”

The current owner purchased the codex in 1989, said Mintz, and is now "delighted to be able to share it with the world.”

A rare find

This is believed to be the very first codex, or manuscript in book form, of the Hebrew Bible. In the centuries prior to its writing there were only portions or sections of biblical texts in scroll form -- which came to be known as the Dead Sea Scrolls. But these contained no verses, chapters or punctuation, Sotheby's said.

Jews in antiquity came to rely on oral tradition passed down through generations to understand and preserve the message of the Bible, the auction house added.

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This and the Aleppo Codex, housed at the Israel Museum in Jerusalem since 1958, are the only two codices dating to the 10th century and comprising almost all of the Hebrew Bible.

But, according to the museum, the Aleppo Codex was badly damaged in a fire at the community's synagogue in 1947 and today "no more than 295 of the original 487 leaves [pages] survived." By contrast, the Sassoon codex is only missing 12 full pages so, according to Sotheby's, "is thus the earliest, most complete copy of the Hebrew Bible extant."

Richard Austin, Sotheby's global head of books and manuscripts, added in the release: "Codex Sassoon has long held a revered and fabled place in the pantheon of surviving historic manuscripts and is undeniably one of the most important and singular texts in human history."

Centuries-old annotations and inscriptions

The historical significance of the codex is not just the printed material, but the hand-written annotations and inscriptions added over the years -- hinting at the epic journey it has taken.

An entry from the early 11th century refers to a sale by Khalaf ben Abraham, perhaps in Israel or Syria, to a man called Isaac ben Ezekiel al-Attar, who later transferred it to his two sons.

The next location mentioned in the annotations came in the 13th century when it was dedicated to the synagogue of Makisin (present-day Markada in northeastern Syria).

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It was likely rebound at this stage, according to Sotheby's, and inscribed with the words “consecrated to the Lord God of Israel to the synagogue of Makisin.”

Makisin was later destroyed and the codex was entrusted to a community member called Salama bin Abi al-Fakhr who pledged to return it to the synagogue in the event of regeneration.

But the synagogue was never rebuilt and the codex continued on its odyssey until it was acquired by Sassoon in 1929. (CNN)

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