Complex sentence: The British Museum has a 1643 copy of the "The Soldier's Pocket Bible" (Great Britain copy) and the only other 1643 copy known to exist is an American copy once owned by George Livermore.
Split into simpler sentences: The British Museum has a 1643 copy of the "The Soldier's Pocket Bible" (Great Britain copy). The only other 1643 copy known is found in the United States and was once owned by George Livermore.