PowerColor HD5850 Heatsink + Fan. Looks reference design to me.
Fan in good working condition. Heatsink quite clean despite running for a year (no i didn't clean it).
One of the heatsink screws got cut through while i was screwing it back after replacing thermal paste, so i decided to replace it with a AC TwinTurbo. All screws with springs are included however.
Pictures upon request, i already took pictures but it's a PITA to transfer pics out of my Nokia E7.
Shipping from Finland.
Price: Best Offer + Shipping.
Buy out: 25$
Payment PP or Bitcoin equivalent.