Nothing here is usable as-is. You will either need to supplement them with parts to use or use them as parts donors for other bits. Yours for postage.

• Huret Duopar Eco rear derailleur (most of one) - missing one pulley and the fixing bolt and cover(s)
• Shimano 600 Arabesque rear derailleur - fixing bolt was rusty and spring cover is cracked - adjuster screw busted off in body
• Shimano 600 Arabesque front derailleur - missing clamp bolt and rear cage bolt & spacer
• SunTour Spirt front derailleur - missing clamp bolt
• SunTour Cyclone Mk II rear derailleur - missing all its screws, broken b-screw tab