Gustavsberg Argenta

Gustavsberg Argenta ........Its almost 3" tall
On the bottom left there’s a Y in gold
And on the right side just off the gold lettering there’s an S that looks to be imbedded
Under the gold lettering it look’s to be 8PJ or 891
The only gold on this is the lettering on the bottom
Is this how it’s dated I am trying to date this
I see some on EBay but all the lettering’s different
And This peace is a darker green
I need some help do you no anything about this????/