Let's not forget our own CC Webmaster, Alarik von Hofsten, who also resides in Valmo, Sweden on his 31 Commander. This is a Holland, MI built vessel of which he exported to Sweden about 10 years ago.
The last year of USA production for the 31 Commander of all models was in 1973. Maybe the plant in Italy kept on producing them until 1975. This information is at the Mariners Museum in Virginia.