Complex sentence: For controlling 2-rail DC locomotives, like Märklin's Z and 1 gauge rolling stock, a special version of the system was introduced in 1988 developed by Lenz jointly for Märklin and Arnold.
Split into simpler sentences: For controlling 2-rail DC locomotives, like Märklin's Z and 1 gauge rolling stock, a special variety of the system was introduced in 1988. This version was developed by Lenz jointly for Märklin and Arnold.