USPS 1975 Mint Set of Commemorative Stamps Stamp Album 28 Unmarked Stamps

Purchased new, was a collector for years, selling other sets, if interested in more, BUNDLE each LIKE for discounts. This is a 1975 set of stamps, 28 count, includes 1 - 8 cent, 24 - 10 cents, 1 - 18 cent and two unmarked Christmas stamps. Pages tell the history of each stamp, all in great condition.