This is the Märklin Gauge 1 - H 66/13021 PLM Pacific, electric version. I'm not sure the exact year of manufacture but they were made between 1922 - 1929. It's in really great condition, please look at the images supplied as they should give you all the info required.
I have tested it and it runs and the lights go but it definitely needs lubrication to get it running smoothly. Please feel free to ask any questions and I will try to answer as best I can and supply more images if required. It is unboxed but will be packed carefully. The item "Märklin Gauge 1 H 66/13021 PLM Pacific electric" is in sale since Wednesday, May 8, 2019.This item is in the category "Toys, Hobbies\Model Trains\1 Gauge\Locomotives".withers" and is located in Croa, NSW. This item can be shipped worldwide.