Hi just my thaught for what it’s worth...... if your ever on the Italian riviera near Genova spare a little time and get the train or drive , train is easier to la spezzia and have a trip to the Italian naval museum only 1.5 euro !!!!!! they have an original Pam used in action from the 1930-1945 donated by one of the frogmen and also one of the only maiale in existence also the mas boats worth a look and if your flush!!!! Pam boutique in Florence must be over 30 plus models and a small exhibition of Pam naval equipment they used to manufacture for the Italian navy pre Second World War and after .... just my thaught