The Rescue Tool for 95.- was "released" in 2018 and the blades are made of stainless steel.
The Rescue Tool for 64.70.- was "released" in 2008 and the blades are made of steel.

The third picture of the more expensive version shows replacement material.
Perhaps this is also included?
Some components of this knife can be replaced without tools.

This is probably a mistake. Victorinox only produces one version of the Rescue Tool, and the case is included as standard. There have been various campaigns where a first-aid kit or similar was included, but this is not the case here.