This very nice 3-rail AC HO gauge locomotive by Marklin is 83443 a DR 243 / DB 143 electric locomotive in red livery. It has running number 143 094-1. The livery and loco number used are to celebrate the reunification of german railways, so the loco has DR livery at one end and DB at the other.  

The DR Class 243 is a universal electric locomotive of the Deutsche Reichsbahn which is used for general rail service. Deutsche Bahn lists the locomotive as Class 143. The locomotives of class 143/243 still belong to the most successful class of German electric locomotives.

In the 1980s, few lines on the East German railway network were prepared for speeds exceeding 120 kilometres per hour (75 mph), which had been the principal reason for Deutsche Reichsbahn having specified 120 km/h to be the top speed for their Class 243 locomotives. In 1984, the first batch of 20 locomotives was delivered, followed by 80 in 1985, 100 in 1986, 110 in 1987 and 114 in 1988. By the end of 1989, five hundred locomotives had been completed.

The following year more locomotives were moved to the west where they were used on the Schwarzwaldbahn, the Höllentalbahn, the Rhein-Ruhr S-Bahn and goods trains from Dortmund. After the DB and DR were combined in 1994 to form Deutschen Bahn AG the Class 143 locomotives were used on many more lines in the former West Germany.

The former 212 001 remained the property of LEW and after testing by the DR from 1982 to 1984 was used for various measuring and experimental tasks. In 2002 it was sold to EKO-Trans and (now numbered 143 001) was painted in their red and silver livery. In May 2008 143 001 was repainted orange with the logo of its new owner, Arcelor Mittal

The loco is in good condition as you can see in the pictures, We are unable to test it as we do not have a three rail AC test rig or track, so we have not tested it but can see no reason why it would not run. It is sold in untested condition, this means that it may not run, and as such it is not being sold in running condition. However 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!).