This very nice HO gauge locomotive by Roco is 43636 a DB E41 electric locomotive in blue livery, with running number E41 004.

The class E 41, also known as the DB Class 141 is the first class of German Einheits-Elektrolokomotive commissioned by the Deutsche Bundesbahn in 1956. Originally designed for light passenger trains, and with a top speed of 120 kilometres per hour, class E 41 was also designated for passenger services on smaller lines. In the 1950s, due to general lack of locomotives, class E 41 was also used for express train service. However, after speed of express trains was raised to 140 kilometres per hour in the early 1960s, the class mostly lost its express services.

The last four examples in service were retired in 2006. 

The loco is in good condition as you can see in the pictures, it is fully tested and runs. It comes complete with its box. 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!).