Messer (weapon) of several "Fechtbücher" (fighting manuals) of the 14th and 15th centuries, including that of Johannes Lecküchner (dealing with the "langes messer"), the "Codex Wallerstein", Hans Talhoffer, Paulus Kal and Albrecht Dürer. Messer (weapon) A messer (German for "knife") is a single-edged sword with a knife-like hilt construction. While the various names are often used synonymously, messers are divided into two types: "Lange Messer" ("long knives") are one-handed swords used by Bourgeoisie (middle-class civilians) for personal self-defence. They were about a meter long and may have evolved from the "Bauernwehr" ("peasant's sidearm"). They are also known as "Großes Messer" (Great Knife).
Heidi Messer in an exhibition hosted during a private mission on the International Space Station. The reception for these works benefited the Challenger Center for Space Science Exploration and featured the astronaut Buzz Aldrin. Messer served on the 2012 Wall Street Journal Executive Task Force on Women and participated in the 2014 Wall Street Journal CIO Network as a subject matter expert. In 2013, Messer was selected to serve as a member of Comptroller Scott Stringer's Transition Committee. In 2012, Messer was selected as one of the 100 Most Intriguing Entrepreneurs by Goldman Sachs as part of their Builders and Innovators Summit.