Here in Italy for the old books, I can recommend two booksellers, both
reachable via email:
[log in to unmask] (which is in Palermo)
and
[log in to unmask] (the store is 'Libreria naturalistica', located
in Bologna).
regards,
Maria
Maria Antonietta Fontana Angioy
Evolver srl - La Conchiglia
Rome, Italy