Märklin S 870 Clockwork Loco w/ original key in excellent condition. The loco and passenger car are from S 873/1, a vintage HO wind-up train set made in 1953. There would have been another passenger car and some track. 327/2 Red Passenger car with some wear especially on the roof. Please see pics with zoom for details.From my father's collection. Tom Catherall was the digital consultant for Märklin Trains for decades and amassed a large collection of trains and accessories. The item "Märklin S 870 Loco with key + 327/2 Red +Hopper Vintage Clockwork HO Wind-up Set" is in sale since Thursday, February 01, 2018. This item is in the category "Toys & Hobbies\Vintage & Antique Toys\Wind-up Toys". The seller is "dadstuff" and is located in Orem, Utah. This item can be shipped worldwide.