When I owned mine (and it as a later vintage than FxJohn's)
it had the pressed in BB. I wanted to upgrade to better components
(campy? what was I thinking?) and the only options was
to replace by having the BB shell taped out to Italian threading.
The first batch of lamberts (and I think this is one) had a standard
cup and cone bottom bracket.
As stated this one is an early one.
FxJohn, it doesn't mention Reg Harris on the bike anywhere, does it?
I'm thinking Braxton did maintenance on the bike and slapped his
sticker on it. The bike is a Lambert.
Marty