4.25" 8.5" original mailing envelope contains pair of 3.5x6" papers and metal ring. Envelope has postmark of July 23, 1979, premium offer expired Jan. 30, 1980. Ring was available free w/10 Nestle candy bar wrappers or for $1.50 and five wrappers. Envelope has scattered lt. wear but Fine. The first paper is two-sided on glossy stock obtained from store featuring this promotion. Front features illustration of Superman and the ring, reverse is an order form. Paper has lt. handling wear but VF. Second one-sided paper came w/ring and is an order form for obtaining additional rings. Lt. scattered wear as packaged but Fine. The ring's adjustable brass prongs lead to a larger brass top w/acrylic-covered insert featuring "S" logo. Reverse has DC copyright and date of 1976. Mint.