Norwich, it is indeed the Nardi FN.333 of 1952. Fratelli Nardi sold the manufacturing rights to Savoia-Marchetti in 1959, after which it became known as the SIAI-Marchetti FN.333 Riviera.
Well done, you have control.
Barit1, Lane assembled and sold the aircraft in the USA.
There is an interesting site about this machine at:
The Nardi FN.333 Riviera Amphibian
Chiglet, no apologies needed. One of the most enjoyable things about this forum 9s the amount of interesting discussions about aircraft and their roles.
Richard