Complex sentence: The Louisiana Purchase Exposition dollar was a commemorative coin issue in gold dated 1903, in two varieties, designed by United States Bureau of the Mint Chief Engraver Charles E. Barber.
Split into simpler sentences: The Louisiana Purchase Exposition dollar was a commemorative coin issue in gold dated 1903. Struck in two varieties, the coins were designed by United States Bureau of the Mint Chief Engraver Charles E. Barber.