Meeting of the three different cogwheel steamlocomotive types of the Dampfbahn Furka Bergstrecke at the shed of Realp. On the left 600 horsepower HG 3/4 # 9 from 1914, which arrived with train # 154 from Gletsch. In the middle the large and heavy 800 horsepower HG 4/4 # 704 from 1923 ex Vietnam, on test runs this day and ready for another run to Tiefenbach with two cars. On the right the small 350 horsepower HG 2/3 # 6 "Weisshorn" from 1902, which was in the work train service this day to Furka. This 3 locomotives, all built by SLM Winterthur, represent different stages of development of cogwheel steam locomotives, with different drive types.
