Dorr Felt’s Comptometer

Origin
Dorr Felt was an inventor who invented the Comptometer an early computing device predating the modern digital calculator. His first prototype was made from a macaroni box, skewers, staples and rubber bands.

Effects
Any combination of buttons can be pressed to activate the artifact. When in use, it can figure out the solution to large arithmetic and financial problems with ease. However, higher math such as geometry and calculus, are beyond the comptometer’s scope.