Final answer:
Estimating the number of Bible copies in a country is challenging due to new printings and distributions. Historic vellum manuscripts and moralized Bibles are only a fraction of these copies, as modern print editions are widespread.
Step-by-step explanation:
Tracking the exact number of Bible copies in a particular country at any given time is a complex task, as it is continuously in flux due to new printings, sales, and distributions. Historic manuscripts like the ones mentioned, such as those held in the British Library or Morgan Library in New York, represent only a fraction of the Bible copies in existence, concentrating mainly on ancient and valuable editions. These manuscripts are treasured for their historical value and the insight they provide into the cultural and artistic practices of the times when they were created. For a comprehensive count of Bible copies, one would need to consider various editions, including the historic vellum manuscripts, moralized Bibles, and the ubiquitous modern print editions found in bookstores, libraries, and households.