I see references to this, but don't really know what it is. If it's a certain type of album, please explain.
It used to be a popular Dansco coin album for all major US type coins (1800-today). Some collectors refer to a “7070” when talking about a US type set, there’s even an NGC 7070 online registry set. I believe page 5 was added later to include gold coins. @dwhiz keep me honest See: https://www.wizardcoinsupply.com/product/dansco-album-us-type-major-types-from-1800.html https://www.ngccoin.com/registry/competitive/united-states/type-sets/1004/
A high-quality coin album manufactured by the Dansco Corporation for U.S. Type Coins 1800 to present-day. They haven't been manufactured for several years, so finding an album and supplemental pages can be quite difficult. http://www.danscoalbumstore.com/us-type-major-coins-from-1800-dansco-album-7070-p-1994.html
Good luck with finding a gold-page nowadays. Most online sellers typically sell them for close to $100.00.