This very nice HO gauge locomotive by Roco is 43622 a DB BR 361 diesel locomotive in red livery. It has running number 361 821-2 

The DB Class V 60 is a German diesel locomotive operated by the Deutsche Bundesbahn (DB) and later, the Deutsche Bahn AG (DB AG), which is used particularly for shunting duties, but also for hauling light goods trains. Seventeen locomotives were bought used by the Norwegian State Railways and designated NSB Di 5. Also the Yugoslav Railways bought used units, and designated them JŽ 734; they were subsequently designated Series 2133 by the Croatian Railways.

The new class was initially called the V 60. In 1955 the first prototype locomotives, V 60 001–004, were delivered by Krupp, Krauss-Maffei, Mak and Henschel, each having different engines. In 1968 the V 60s, like all other DB locomotives were given computer readable numbers. At this point the class was divided into Classes 260 (light variant) and 261 (heavy variant).  A total of 942 locomotives of this class were built. The engines were not just used for shunting, but also for light goods and passenger train services. They were even employed hauling departmental trains.

In 1987 the engine was classified as a minor locomotive (Kleinlok) and reclassified. Class 260 became Class 360 and the 261s became 361s. Its categorisation as a Kleinlok saved staff costs, because the railway no longer had to employ "engine drivers", only "Kleinlok operators", whose training was cheaper. 

Many remain in service. 

The loco is in good condition as you can see in the pictures, I have not tested it but I can see no reason why it would not run, so it it is sold in untested condition, but a complete external visual inspection has shown no reason why this loco would not run and the overall condition is very good. The box is in good if slightly shelf worn condition. 

Overall this is a really nice scale locomotive and would look fantastic on a layout.

Do please have a look at my other listings, I typically have various HO and OO locos on offer as well as an extensive range of imported N gauge locos and other items. 

Note: I do recommend all locos are cleaned & serviced, as they have some age to them even if the quality looks at the highest level (fairly standard advice for all locos!).