By the mid 20th century, brakemen were no longer needed to ride wagons and operate their brakes. Thus, brakeman's cabins were removed from older wagons and newer wagons were built without them. This tank wagon represents such early to mid 20th century European tank wagons.
If Advanced Trains TechAge addons is installed and enabled, and Advanced Trains is running at version 2.4.3 or later then this wagon can also be used to transport up to 1000 units of liquid.
Note: This tank wagon had a cargo capacity of 24 inventory slots in previous versions of this mod. As of the 1.19.0 release it is now 18 slots. In order to avoid losing cargo, existing tank wagons with cargo exceeding 18 inventory slots will continue to carry that cargo and have more than 18 inventory slots but the cargo capacity of those wagons will be reduced after the excess cargo is removed. The code to support preserving excess cargo in these wagons may be removed in a future version of this mod. Players should therefore check for and remove excess cargo from these wagons in order to avoid losing it in the future.