Complex sentence: One steel-built pigeon van has been preserved, as have 14 of the teak coaches.5 pigeon vans have been restored and are used on heritage railways as guard's vans on passenger trains and mail drop recreations.
Split into simpler sentences: One steel-built pigeon van has been preserved, as have at least 14 of the teak coaches. A number of pigeon vans have been restored and are used on heritage railways as guard's vans on passenger trains and mail drop recreations.