Complex sentence: The first six, numbers 868 to 873, were built in Germany by Hohenzollern Locomotive Works and delivered in 1928, and another eight, numbers 843 to 850, were built in the United States by Baldwin Locomotive Works and delivered in 1929.
Split into simpler sentences: The first six locomotives, numbers 868 to 873, were built in Germany by Hohenzollern Locomotive Works and delivered in 1928. Another eight locomotives, numbers 843 to 850, were built in the United States by Baldwin Locomotive Works and delivered in 1929.