This Spartan was part of the Confoederatio Helvetica series, released in 1991. It has an image of William Tell on the front scale. The other knives in this series had metal inlays. Note that the Ambassador was not part of the series and neither was that Sportsman with music cassette I showed a decade ago.
Production of this Spartan was limited to 53,440 pieces. Model no. 1.3603.91.