The locomotives WURZEN and OSCHATZ were early German steam engines operated by the Leipzig–Dresden Railway Company (LDE) for mixed duties.
The outer firebox was topped with a semi-circular dome that extended forward over the boiler barrel and acted as a steam collection space.
The steam cylinders were located on the outside, unlike those on English locomotives, which avoided the need for a crank axle that would have been expensive and difficult to manufacture.
The steam engine was equipped with inside Borsig double valve gear driven via two eccentric cams.
Exhaust steam was led from the valve chest to the tender through a 100 mm connecting pipe.