You've looked for: Locomotives class 40 (registration: 40-xxxx-y) operated by Transferoviar Grup.
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[640] [800] [1024] [1280] [original] 40-0622-7 Class 40 of Transferoviar Grup Station Bucuresti Nord July 23, 2011, Diana Constantinescu (other 6 pics with 40-0622-7)

[640] [800] [1024] [1280] [original] 40-0709-2 (-> 91 53 0 40 0709 8) Class 40 of Transferoviar Grup Station Bucuresti Nord July 1, 2011, Gabriel Dumitriu (other 2 pics with 40-0709-2)