Which ads where?

That description seems misleading or inaccurate. Unless they've added a pump to the tank, in which case it isn't really a 123 anymore, but a new model.

I do recall the first backpack I ever took, where my hiking partner brought along a brand new Svea 123 and the instructions for lighting it. (He'd never lit it before - ever!) If I recall correctly, the instructions insisted that the tank could be warmed between your hands to pressurize it, and warned against using white gas to do this, as this was dangerous! <img src="/forums/images/graemlins/grin.gif" alt="" />

As you may guess, we spent a long time futilely warming it in our cold hands and cursing it a blue streak. Later, we learned that no one, but no one ever used this insane method.