Schuco Disneyland Monorail
Here is a Schuco Disneyland Monorail, set # 6333G, in operation on my Kusan train layout. The monorail is 1:90 scale, which is slightly smaller than HO scale. It was made in West Germany during the 1960's.
A great resource for these is the Schuco Disneyland Monorails website.