Vintage backgrounds: Expansion of the upper deck at Candlestick Park

While it's not uncommon for baseball stadiums to undergo partial renovations during the off-season, in-season construction is quite rare. During the 1971 baseball season, the upper deck at Candlestick Park in San Francisco was expanded across the outfield in preparation for the 49ers to move in for the '71 football season. As a result, 1972 Topps photos taken in the park show the upper deck in different phases of construction. These two cards are taken from the same spot (left field corner) and show the outfield upper deck looking very different.