All 1990 Pro Set Football Cards The most valuable card of 1990 Pro Set is currently 1990 Pro Set #685 Emmitt Smith PSA 10 with a worth of approx. $339.99. The most traded card of 1990 Pro Set in the past 30 days on eBay was for 1990 Pro Set #685 Emmitt Smith with 6 trades and an average price of $1.71.