SIMPLEX Prestige Vintage Rear Derailleur Made in France Brevete SGDG w/ hanger. Taken apart, inspected, cleaned and reassembled. All springs, bolts, screws etc. in good working order. Jockey tension wheels replaced with an off-brand quality alternative, and is the reason why the price is relatively low (can be restored with original wheels fairly easily if you’re a purist), some surface rust but nothing that degrades the component’s integrity.