Bidspirit auction | United States - Modern Errors

United States - Modern Errors and Varieties - 1988, Antarctic Explorers, 25c multicolored, complete pane of 50, contains 10 se-tenant blocks of four and 5 vertical pairs of No.2386/2389, 7th horizontal row with all colors missing and stamps of 5th and 6th rows partly or completely printed on double paper, minor marginal separations and tiny piece of top right corner margin missing, full OG, NH, VF and probably unique multiple, stamp with all colors missing are not listed in Scott, Est. $2,000-$2,500, Scott #2389a, var