The Victorinox Pen with Knife is the exact opposite of the Signature knife. Instead of having a small pen built into a pocket knife, it has a small pocket knife built into the body of a standard sized ball point pen!

The Victorinox Pen is no longer in production, but it is still sometimes available in used condition. It is a moderately rare collector's item. If you just want a practical pocket knife with a pen, consider the Signature model instead!

Classic SD-- no pen body, adds toothpick and tweezers
Signature-- no pen body, has retractable pen built into pocket knife body