GKB Graz-Köflacher Bahn
2-6-2T no. 2 - Sulm at Graz loco shed on June 20th, 1967
The background for this engine comes from a Swiss correspondent: this is a kkStB (Kaiserlich-königliche österreichische Staatsbahnen) class 30, originally designed for the suburban traffic in Vienna before WW1. A few examples were subsequently sold to private railways such as the Sulmtalbahn (Sulm
Valley Railway) south of Graz. Wikipedia states that the Sulmtalbahn bought two locos of this class and numbered them "1 Sulm" and "2 Sulm". The Sulmtalbahn was later absorbed into the GKB whose locomotive fleet was entirely secondhand and which didn't have much interest in numbering schemes (how wonderfully quaint) which explains the strange conglomeration of numbers on their engines and why it is that this engine's number, "2 Sulm", survived to the end of its days.