Lot of 5 Mixed 1970s-1990s US Postal Stationery Covers

Lot of 5 unused USPS postal stationery covers from the 1970s-1990s.

These appear to be in good condition with normal age and storage wear from handling. No used mail is shown.

A mixed assortment featuring vintage U.S. postal stationery and collectible postal history designs, including assorted denominations and colors.

Approximate size of each cover is 9.5 in long by 4.25 in wide.