This is Marklin 37912 DRG Sline Steam 2-Loc Set. Class 03 streamlined 4-6-2 two-loco set, 3-rail with sound & digital. German State Railroad DRG #03 1007 & 03 1009 (Era II, 1 each black & red). The locomotives look as they did around 1940.

Its key features are:
Both locomotives have digital decoders and controlled high efficiency propulsion
3 axles powered
Traction tires
7226 smoke generator can be installed in both locomotives
Headlights and smoke generator contact will work in conventional operation and can be controlled digitally
Length over the buffers for each locomotive 27.4 cm / 10-3/4

Condition: Factory New (C-9)
Operational Status: Functional
Original Box: Yes (P-9)

Manufacturer: Marklin
Model Number: 37912
Road Name: **** No Road Name
MSRP: $689.98

Scale/Era: HO Scale
Model Type: Steam Loco

The SKU for this item is P11648565.

Product Id: 11648565