what is the difference between a pen knife and a pocket knife
Penknife Today the word penknife is the common British English term for both a pocketknife, which can have single or multiple blades, and for multi-tools, with additional tools incorporated into the design.[2]
Swiss Army knife In January 1891, the knife received the official designation Modell 1890. The knife had a blade, reamer, can-opener, screwdriver, and grips made out of dark oak wood that some say was later partly replaced with ebony wood. At that time no Swiss company had the necessary production capacity, so the initial order for 15,000 knives was placed with the German knife manufacturer Wester & Co. from Solingen, Germany. These knives were delivered in October 1891.