Who has the largest collection of ballpoint pens?

The individual recognized for having the largest collection of ballpoint pens is Angelika Unverhau. She has garnered international attention for her extensive assortment of over 5,000 different ballpoint pens, illustrating a remarkable dedication to collecting this particular writing instrument. This impressive collection not only highlights the variety and design of ballpoint pens throughout history but also emphasizes the cultural significance and evolution of writing tools. Unverhau's collection is officially recognized by the Guinness World Records, which offers a validated benchmark for collectors and enthusiasts alike, further solidifying her status as the foremost expert in this niche.

In contrast, while the other individuals mentioned may have notable achievements or collections, none are documented to possess collections of ballpoint pens that rival Unverhau’s. Each of these figures may have their own unique accolades in different fields, but when it comes to ballpoint pen collections, Angelika Unverhau stands out as the undisputed leader.