[Brentwood Bob]

My lifetime.
Swag on being Apple shocks, the effort impressed this guy.
3 of the 4 I bought as cores had similiar bases, all 4 had same covers, all were intact.
They all came out of the same discard pile, so I assume they were a set.
Being "possible Apple shocks" seems like a good guess. The guts, other than the rotor,
were machined, and upgraded/ replaced.
Who else would do that?