I know nothing apart from the fact that they look awesome.
When did Victorinox stop using brass liners? Or did they stop? I have a alox Pioneer that is a couple of years old and it has a brass liner. I thought they stopped using brass? Also, why the change? I assume because brass cost a little more $$$, but not that much.
You still find some of the gardening range with brass liners. In the 93mm range its very confusing. Right from the early sixties you'll find them without brass and at the opposite end find some brass ones from the nineties.