A colorful 1888 Queen Anne Victorian noted for its period wallpaper — even on the ceiling — has won the Sharon Historical Commission’s 2012 Sharon Preservation Award. Gary and Abby Sullivan have owned the home at 15 Belcher St. since 1989. The couple has done a variety of decorative work, Gary Sullivan said, but in the last year and a half, they concentrated on redoing the first-floor paint and wallpaper, including dramatic Victorian paper on the ceiling. The exterior of the house is painted in about eight different colors, characteristic of the style, he said. On Feb. 12, Bruce Rosenbaum, cochairman of the Historical Commission, awarded the Sullivans a certificate and plaque denoting the year the home was built and the name of the original owner, Frederick W. Mansfield. The house will be on the Sharon Historical Society’s annual house tour on May 19.