There are 4 Nardi FN-333 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1961 and 1965.
N913NS
1965 Nardi FN-333
Green Bay, WI
N993DM
1965 Nardi FN-333
Green Bay, WI
N627
1962 Nardi FN-333
Bakersfield, CA
N5HL
1961 Nardi FN-333
Quinlan, TX