Each suspended 2.25" button has backpaper by Brunt of San Fransisco. The piece issued to a "Participant" for the opening is 4.75" tall while the piece inscribed "Good-Bye!" on the hanger is 4.25" tall. The first piece has small bit of air under cello mostly just showing as a whiter mark on extreme left of the white bkg. The piece is essentially Mint as issued. The piece for the final day has a small split 1" long at left where ribbon joins the collet of the button. This has neat archival tape repair on the reverse and from the front the piece still displays extremely clean. However there is a faint line of stain around the upper edge plus a small dent over the letters "Int" of the word "International." The pair still display beautifully. Limited issues.