A growing Twin Cities company that makes apps for sending digital cards and other customized communications has been acquired by North Mankato-based Taylor Corporation, one of Minnesota’s 20 largest ...

51,000 were printed, and fewer than 150 are still around. The stamp is worth an estimated $547,464 adjusted for inflation ...

Between 1841 and 1879, British authorities issued billions of Penny Red stamps, serving a communication revolution driven by rising literacy rates that saw letter-writing boom. Philatelists are ...