The first is early NR, which had the flat fixed cup. The non-grooved lockring is odd. English have one groove, Italian have no groove. Is it possibly Italian (which would be too big to thread on) or non-Campy English?
The second BB has thin-walled (non-rifled) Record cups. I think the spindle is for thick walled cups. If the spindle races are spaced the same as on your other two spindles, the thin walled cups won't work with it. I think the "T" and Made in Italy stuff is late, like 1990's. Victory, Athena, early Chorus, etc, which used a Record type cup. The different placement of the groove on the lockring is definitley a late 80's or 90's thing.
The last BB is garden variety Pre CPSC NR, by all appearances.
Tom Dalton
Bethlehem, PA
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