Bidspirit auction | Märklin metal construction set with

Märklin metal construction set with extension set, both in OVP, 1930s - Märklin metal construction set with extension set, both in OVP, 1930s Metal construction set from Gebrüder Märklin & Cie. Göppingen with supplementary set, both from the 1930s. Apparently with complete contents. With flash rust in places.