The product is a block of four U.S. postage stamps with original gum, featuring a 45 cent denomination and a multi-color design. This particular stamp block was canceled on September 25, 1990, in Pine Ridge, South Dakota, and canceled with a CDS cancellation type. The stamps are part of the U.S. Air Mail series and are uncertified. This collectible item is graded as VF (Very Fine) and is a valuable addition to any stamp collector's collection.