Even before the appearance of Barber's sketches, other designs were being considered for the half dollar. In early August, artist Frank Millet proposed to the fair's Director of Decorations, Olin Warner, that Warner design the coin. Warner modeled one depicting a profile of Columbus, not based on the Lotto portrait. His reverse showed a caravel ship, symbolizing the "Santa María", Columbus's flagship, above two globes representing the hemispheres, though they lacked the continental outlines. Warner's proposal was praised by artists working on their sculptures at the fairgrounds. Leech also weighed in once he returned from vacation on August 26, sending fair organizers a woodcut engraving based on the official Spanish medal for the 400th anniversary of Columbus' first voyage, and arranging with the State Department for the American Embassy in Madrid to get one. A medal was duly obtained and was subsequently placed in the Mint's collection.