There was no "standard" headjoint that was issued. It will be marked on the back of the headjoint just below the crown. The Vivo headjoint was introduced in 2000. Depending on exactly when it was made, it may be a Vivo. The Forte did not come out until 2002.
Re: Pearl Cantabile 12:10 on Thursday, May 24, 2012
The N2 was the traditional style headjoint with a bit more undercutting than the N1 "Classico". More Oval in style and not as big as the current crop of headjoints. These earlier headjoints had a different taper as well. The idea was to capture the "French" sound.