These are officially licensed silver plated Dallas Cowboys button covers. The Cowboys joined the NFL as a 1960 expansion team. The team's national following might best be represented by its NFL record of consecutive games in front of sold-out stadiums. The Cowboys' streak of 160 sold-out regular and post-season games began in 1990, and included 79 straight sellouts at their home, Texas Stadium, and 81 straight sell-outs on the road. Declare your love for the team, and spruce up your shirt in style.