Dan, There is an alloy version from Simplex on eBay currently (Not mine). These attached to one of the derailleur clamp mounting bolts (on the Prestige plunger-style front derailleur) by substituting a longer bolt, and it was also secured to the downtube with a simple ring clamp. These were probably the most common ones and were often associated with Peugeots.
eBay item number: 150109509827.
There were also many other (nicer) alloy versions by other French companies like Le Fol - the famous mudguard/fender maker.
Bob Hanson, Albuquerque, NM, USA
____________________________________
Dan Polito wrote: several years back i remember seeing a few different chain guards on older city bikes that were bird profiles around the wheel, and then an extended wing along the chain. i can't, for the life of me, now remember where i saw these or even to what particular marques these chain guards were associated with. i think they were french? something also tells me really early peugot city bikes, but i couldn't find anything to confirm that.
************************************** See what's free at http://www.aol.com.