When I was a kid- we're probably in the range of 4 decades ago- I remember at the "sports" section of some department store (they were different then, before malls) examining a "Swiss Army knife" that had a liner lock on at least one blade. The scale was not recessed for it, instead it had a rounded tab that stuck out to the side, and it was made of thin brass sheet that inspired zero confidence.

I remember it well because I had to figure out how it worked to close the knife, never having seen anything like it before. I doubt that it was Victorinox, but at that age I didn't know one SAK from another. Don't remember the price, but anything above $5 was out-of-sight ridiculous at the time, so it probably wouldn't mean much today anyway. I seem to remember that you could get those flat German "cat" folders for about $1.75, and a nicer lock-back for about $2.50.