Locomotives similar to French BB 25500s or 17000s. E40000s of TCDD.8 out of 15 were bought from  Alsthom Groupement (France)in 1971. The other 7 were mounted at Haydarpaşa. The version above is in 1970s livery.In 2000s still some are in service as local trains in new livery.  

Known as "Kriegslok" (56500 in TCDD)and produced by many manufacturers such as  Henschel, Borsig, MBA, Schwarzkopff, WLF , the class 50 locos were as many as 53 in TCDD. Known as compatible for poor quality lines. At least 2 of them are known to be at service for special occasions.

Locos similar to German BR 360s produced by Krupp-Esslingen. DH 6500s were introduced to TCDD in 1960s and were 40 in number. Not known how many of them are still in service. Yet one can see it in terminals such as Haydarpaşa-Istanbul.

Locos similar to GermanV100s produced by Mak, Jung and Esslingen. Although DH 11500s were bought by TCDD many years later than it was first produced in 1960s it serves as both shunter and short distance locos.TCDD had 15 of them, not known how many of them are still in service.

The less known and older diesel locos DE20000s were bought from American General Electric in 1957s, quantity being only 5.  Not in service at the moment, I  appreciate those who could send me more photos.