Greysheet and Red Book on Instagram: "The ultimate US coin catalog returns with Mega Red X! As the deluxe, super-sized companion to the Official Red Book, this new Mega Red delivers more coins, more varieties, more pricing coverage, and deeper research spanning the full breadth of American coinage - from colonial issues and early federal series all the way through modern mint programs and commemoratives. The tenth edition includes an in-depth special feature on over 130 years of $5 Half Eagle go