Sinclair Lewis 14 Cent Stamps Scott #1856 Error

Set of four Sinclair Lewis USA 14 cent stamps. Classic black and white design. Note the error of no perforation in the center. From my dad’s extensive collection. My dad has Alzheimer’s. All monies raised from the sale of his items will go to Alzheimer’s research. Design: The stamp features a portrait of the acclaimed American author Sinclair Lewis, the first American to win the Nobel Prize in Literature. • Denomination: It has a postage value of 14 cents. • Series: The stamp is part of the Great Americans Series, which replaced the Americana Series and is characterized by its standard size, simple design, and monochromatic colors. • Issue: The stamp was issued around 1985. All sales are final. Please review pictures carefully.