The illustrated 17 cm mittlere Minenwerfer was introduced in late 1912. It was moved with the Protze für mittleren Minenwerfer - limber for medium minethrower. (Photo: German federal archive via Wikimedia Commons; License: Creative Commons BY-SA-3.0-gb)
This minethrower unit of the Reichswehr was equipped with light and medium minethrowers. In the background, two Protzen für mittleren Minenwerfer are visible.