The vast majority of Codex Sinaiticus is on display at the British Library. Additional leaves are in Leipzig and St. Petersburg and at St. Catherine’s Monastery in the Sinai.
On the physical properties of Jewish biblical manuscripts throughout the ages, see David Stern, The Jewish Bible: A Material History (Seattle: University of Washington Press, 2017).
See the detailed study by Edna Engel and Mordechay Mishor, “An Ancient Scroll of the Book of Exodus: The Reunion of Two Separate Fragments,” Israel Museum Studies in Archaeology 7 (2015), pp. 24-61.
Mordechai Veintrob, “More Fragments of Early Torah Scroll Come to Light,” Genizah Fragments 77 (April 2019), pp. 1-2.
Colette Sirat et al., “Rouleaux de la Tora antérieurs à l’an mille,” Comptes rendus des séances de l’Académie des Inscriptions et Belles-Lettres 138.4 (1994), pp. 861-887.
Jordan Penkower, “A Sheet of Parchment from a 10th or 11th Century Torah Scroll,” Textus 21 (2002), pp. 235-264.
7. To be sure, the practice of tagin is alluded to in the Babylonian Talmud, but the custom appears not to have taken hold until later.
This article is an expanded version of my online essay “The World’s Oldest Torah Scrolls,” The Ancient Near East Today, March 2018 (www.asor.org/anetoday/2018/03/Worlds-Oldest-Torah-Scrolls).