I have a 1938 "Caminargent" catalog! mfg. by Hicking of Hayes , Kent, England . "The Pioneer of Duralumin Accessories and Fittings" eight sided french alloy tubes + bolt together lugs, the "Bordeaux-Paris" track machine claims 12 +1/4 lbs!!! the "Randonneuse" a 3spd that moves the cogs (to keep a straight chainline) 18lbs!!! Sorry, no really cool stems, Curtis at Bikeville