Lot 579. Rare Full-Sized 1960s Houston Colt.45s Baseball Pennant. Established in 1962 as a National League expansion team, the Colt.45s became the Astros when the Houston team moved to the Astrodome in 1965. The pennant, approximately 11.5” x 19”, presents a batter with crossed pistols and an outline of the state of Texas in the background. It is g+ to vg with damage to the tip and four tack holes in the orange stripe at the left. Winning Bid $92.