Diesel motor units   SN52  was produced  in GANZ Hungary factory and delivered for polish PKP  lines.  50 pcs was build and 4  sligthly modified SN60 with remote driving cable connection.   They was used  up to 1977 years.  Together with SN52 also personal coach vagons with similar design was delivered.. 

Latter units was changed front/rear cabins- added big lamps and 2 windows front face without doors.     

Model of PKP SN52-38  after rebuld phase. in liver of 1970 years with third head light. Added accessories with  covers of front boggie.