GKL/ELG 365 145-2 passed Wuppertal-Oberbarmen (D) on 6^th of July 2010.
Photo ©Arnim v. Herff
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The locomotive is registered for GK Lokservice GbR in Duisburg. But this company works often together with Eisenbahn-Logistik-Gesellschaft (ELG) from Essen. This is shown on the white plate above the road-number, where are given names and contact-informations of both enterprises.
Other vehicles of them could be found on railfaneurope.net here:

ELG 53.3

ELG Skl

GKL 365 695

GKL 365 695-6