This was part of my entry for the ArtStation Wild West Challenge - category Prop Art rendered.
It depicts the mobile recharging station for the Locust (see here: https://www.artstation.com/artwork/lBzvk), featuring a Duplex steam pump to recharge four cylinders at once.
Everything modelled and textured in Blender, as usual semi-procedurally with tiling textures and some occasional UV's. Minor color corrections in Photoshop.

Link to the entry: https://www.artstation.com/contests/wild-west/challenges/40/submissions/30565?sorting=popular