Shimano Dura Ace,  top of the line, braze-on downtube shifters.  The rear shifter is indexed for 10 speed cassettes but can be changed to friction mode by simply turning a thumb screw. We think downtube shifters are the most trouble free and accurate shifters made.

•  Left side (front) shifter is friction and works with 2 or 3 chain rings
• Fits standard down-tube shifter braze-on mounts
• Includes cable and housing
• 178 grams