Here is a litttle more info on the skis.
The skis that are purported to be Karhus are described as follows…
• 210cm Length
• Classic Sidecut of 87-71-78
• Black, Waxable P-Tex Base (No "Fishscales")
• Full Steel Edges for Better Control
• Camber-and-a-Half Design for Easier Turns
• Urethane Foam-Core Sandwich Construction
• All White (Camo) Fiberglass Top Sheet Minimizes Ice Build-Up
• Grommetted Hole at the Tip for Rigging a Makeshift Sled or Litter
The other skis are described like this…
"These universal skis are built with elements of both cross country skiing, and downhill skiing in mind. They are slightly wider like a downhill ski, but they have an arch, and a center groove like a cross country ski. Our government had these skis manufactured in Straumsnes, Norway, by “ASNESâ€- Skifabrikk A/S. These skis are tapped for bindings (bindings not included), and have a wood core, tap and torsion box construction. Color: White. All with a 75/65/70 sidecut.