Polish steam narrow gauge locomotive Tx26-427. It was constructed in 1926, but the Military Commission refused to order that, so this prototype was bought by PKP, being the only one of that class. The construction allows it to change the wheels to 600 or 700 mm gauge. Picture taken at Steam Depot- Museum Chabowka on August 08, 1997.

Photo and scan: Jerry D. Stawarz (jareks@fs-samba.com.pl, http://panda.bg.univ.gda.pl/~jareks/pekape)