SP47-class consists of only two locomotives, as it was only test diesels for higher speed (up to 140 kms/h). This SP47-001 is put aside near the roundhouse in Olsztyn Depot. Probably you wonder, why you don't see any class letters or inventory numbers. First of all, neither SP47-001 nor SP47-002 works, so it has been standing here for a long time. Second, the class letters are made of aluminium, and they are very attractive to thieves. That's why the director of Olsztyn Joint Depot ordered to take off all class letters from all locomotives that aren't working

photo&scan: Jerry D. Stawarz, Olsztyn Depot, June 24, 1998
[http://panda.bg.univ.gda.pl/~jareks/pekape]