Gdańsk 2021-01-25 Gdańsk Rębiechowo – railway. Photo description: The Ty23 series steam locomotive was a Polish heavy steam locomotive, which was developed by Polish engineers and produced in the period 1923 – 1934. Ty23 means a freight locomotive with the “y” axle arrangement, which was approved in 1923. The axis system is 1’E, i.e. 1-5-0…