1898 Trans-Mississippi Exposition postal cards. Complete set of 10 multicolored 1¢ postal cards (#UX14), with original U.S. Postal Card Co. official souvenir cover, franked with 1¢ Trans-Miss tied by killer handstamp paying printed matter rate to San Francisco, few small card faults and small cover tone spots, F.-V.F., an exceedingly rare usage of this exposition souvenir wrapper. Scott No. 285  Estimate $750 - 1,000. $0 (Image)