Engineer D.B. of the Dampfbahn Furka Bergstrecke (DFB) on the throttle of the most powerful 1 meter gauge cogwheel steamlocomotive of Europe, the 0-8-0 HG 4/4 # 704, entering Furka DFB station on 2160 meter a.s.l., on the occasion of a test and training run from Realp to Gletsch and back.