Thank you for the question on the Greek manuscripts, “Where are Greek Bible manuscripts kept?”
As I ponder this question, one can research on the internet the locations of the Greek manuscripts. For example, “Today, parts of the manuscript (Codex Sinaiticus) are held in four institutions: Leipzig University Library in Germany, the National Library of Russia in St Petersburg, St Catherine’s Monastery in Sinai, and the British Library, where the largest part of the manuscript (347 folios) is now preserved” by the British Museum.
As to the number of parchments and manuscripts, Wikipedia is aware that there are at least, “There are over 5,800 complete or fragmented Greek manuscripts, 10,000 Latin manuscripts and 9,300 manuscripts in various other ancient languages, such as Syriac, Slavic, Gothic, Ethiopic, Coptic and Armenian.” That’s only manuscripts.
The deeper question for us is this, How many parchments and manuscripts have been located or recorded? Dr. Daniel Wallace at Dallas Theological Seminary and the founder and executive director of the Center for the Study of New Testament Manuscripts is seeking to digitize all known Greek manuscripts of the New Testament via digital photographs. This will give scholars an opportunity to do critical studies on the various texts.
The beauty of this that one doesn’t have to fly around the world to see the various parchments or manuscripts, but one can view them in one location. Perhaps one day, it will be also accessible to the public.
SUMMARY: It’s not the locations of the manuscripts that is the most crucial but the availability of the manuscripts that is essential for critical studies of the New Testament writings.
Notation: For more questions, an