The Thinnest swiss army knife made at 3.2mm later ones had liners and the steel shells attached to them and were a few mm thicker this one has no liners

 

Brown Boveri has an interesting history with Victorinox

From the Victorinox History Page 

1931 -- Carl Elsener II introduces automation. In 1931, Brown Boveri is commissioned to set up the world’s first all-electric hardening plant in Ibach. This guarantees that all knives are of a consistent high quality.

The knife is stamped 

Victorinox

Switzerland

Stainless

Rostfrei

The knife will be posted promptly tracked and priority .... but due to the current conditions there may be a delay in arrival.