This World Voyageur that recently sold on Ebay is a 1973 with Dura Ace cranks and Titlist front derailleur. It has a very good picture of the crank and the Crane. This particular bike was only produced in 1973 in Japan for Schwinn. I have one just like it. My wife didn't see the need for two. Go figure.
http://ebay.com/
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Rick Kerkhoff
Cincinnati, Ohio