Bidspirit auction | Marklin gauge I ? workman's

Marklin gauge I ? workman's car - Marklin gauge I ? workman's car, very good to excellent condition but missing one coupler. Has the Marklin emblem embossed on one end. The track that this would operate on would be 42mm inside the flanges of the wheels. The scale is between Gauge 0 and Gauge I so I am uncertain as to what it truly is.