Discover the creative process behind two unique DIY coin sorting machines in this comprehensive tutorial. Learn how to build ...

Richard Colonna of Quantitative Collectors Group (QCG) — has developed a first-of-its-kind device designed to transform how ...

Discover how to build a fully functional coin sorting machine from scratch! This DIY project guides you through every step—from marking and cutting plywood to assembling a spinning wheel and crafting ...

Abraham Lincoln was three years away from being elected president when the half-cent coin was discontinued as an official ...