List of wins by Tier Two nations against Tier One nations in the pro era

[Brigantine]

It says Scotland never played NZ.

Well spotted, contrary to my table, NZ beat Scotland 15 times before 1995 (and 2 draws). This also means the professional era table should be 15x instead of 30x

Corrected tables attached
Caveat: this still doesn't include pre-1995 T1 wins by Namibia and Germany

 

[Brigantine]

Also defeating Italy before the pro era: (in addition to the countries in the table and previously mentioned Namibia 2x and Germany 4x)
- Spain 3x (1929, 1972, 1977)
- Morocco 2x (1971, 1975)
- Portugal (1973)
- Cook Islands (1980)
- Soviet Union beat Italy 9x (and it hasn't existed in the professional era)
- Czechoslovakia (hasn't existed in the professional era)
- Poland (1987 but it was vs Italy U21, presumably no caps)

All accounted for, so definitely not in the pro era. Interesting that apart from 1929, they're all in a 10 year period 1971-1980. Not a great decade for Italy.