Originally Posted by
BlazingPedals
If it's a Schlumpf, it's a 2-speed internally-geared bottom bracket. A button at the center is used to shift it, the outer lever is an option to make it easier to find the button while pedaling. At a guess, it's probably a Mountain Drive, which gears down by a factor of 1.6x; so for instance a 42/52 chainring set would become a 26/32/42/52 equivalent.
Thanks BP but it is a 10 speed, 2-speed front/5 Rear. Has "bar end" shifters, steel framed, aluminum handlebars, aluminum seat frame which is adjustable by sliding along top frame rail which has a machined aluminum track bolted to it. I will post some photos.
Thanks for your reply.