No. 60. It is a dish pâte-de-verre 1993.
Della you're absolutely the Master googler.
"60 BJÖRN STERN, skål, egen verkstad 1993, pâte-de-verre, dekor 2500
means he ran his own workshop (Verkstad)
in 1993; but I think it also means that he managed to stay out of the limelight, and 2500 Skr (182 pounds) is not an impressive price for a handmade skål in Konstglas.