Fox ALPS 4 Rear MTB Mountain Air Suspension Shock Vintage Retro Rad Cool Rare

Taken off a Cannondale SuperV 1000 and switched to a similar vintage coil style rear shock. Looked over all surface areas and couldn't find any signs of cracking or major damage which is rare for these models.

I have several others that are in no where near this nice condition. Pumped it up to 100psi and it held overnight with no leaks detected. Please review photos and ask questions if something is not clear.