Here's a couple of pictures of that gearing setup:



The rear derailleur is a Huret Challenger, but with the long cage from the original "Schwinn Approved" derailleur that came on the bike. Huret derailleurs had good parts interchangability. The front derailleur is also a Challenger, with cut out cage



The bike was originally the standard Schwinn "lemon" color but I repainted it myself sometime in the late 1970's.