Complex sentence: This was a development of the smaller Baden IV f, with a four-cylinder compound 159 were built between 1908 and 1931; the last of which was retired from ordinary service in 1969.
Split into simpler sentences: This was a larger development of the Baden IVf class, with a four-cylinder compound arrangement. Altogether 159 of them were built between 1908 and 1931, with the last one being retired from ordinary service in 1969.