The couplers are early Bing and the wagon is hand enamelled with cast wheels. It does not have any trade mark but I have another early Bing wagon also without any trade mark which has it's original Bing box.
Compatible with HORNBY MARKLIN MäRKLIN LIMA etc. All printed tin construction with opening doors. 3 wagons have factory supplied real sand and coal loads. A couple of wagons have brogen door handles, but replacements are supplied.