80s Stronlight Bernard Hinault B10 1" Threaded Headset, made in France.  Delrin construction, needle bearings, stainless steel races, English threading, 1x24tpi.  26.4mm crown race diameter, 24.6mm upper stack height, 14.5mm lower stack height.  Nice original condition.  Bearings, cups and races are perfect, a few wrench marks on the flats.  At 68 grams, this was the lightest headset made at the time.  Proven needle bearings design from Stronglight.  Buyer to pay $5.00 USPS Ground Advantage shipping with tracking.  Buyers outside the Continental US to use Ebay's International Shipping.  Thanks for looking!