The short "Seetal crocodile" De 6/6 # 15301 was built in 1925 for the line Lucerne-Lenzburg-Wildegg, which was with SBB since 1922 and has grades of up to 3.8 % (opened 1883/1895 by the Lake Valley of Switzerland Railway Company, later Seetalbahn, electrified in 1910 with 5500 V AC 25 Hz, 1930 changed to 15000 V AC 16,7 Hz). The locomotive is shunted in Brugg yard by diesel tractor Tm II # 813 of association Mikado 1244. The "crocodile" is owned and operated by association Seetalkrokodil 15301 and based in the roundhouse of Bahnpark Brugg (AG).
