The provenience of the treasure obtained by Grijalva on this first expedition of discovery to the coasts of Tabasco and Vera Cruz in 1518 is not at all clear from the accounts of this voyage in the writings both of the eye-witnesses themselves and of those who shortly afterward wrote of the conquest from the reports of the participants in the events. It has been generally assumed that Grijalva obtained mosaic objects from the Indians of Tabasco; this is specifically stated by both Oviedo and Gomara, who recorded detailed accounts of the Grijalva expedition. The account by Oviedo[2] is even more extended and valuable than the narrations of the eye-witnesses, namely, Juan Díaz[3] the chaplain, and the redoubtable Bernal Díaz. Oviedo states that his account is from the report forwarded to the King of Spain by the governor Velásquez, who sent out the expedition from Cuba. Gomara, who for a time was chaplain of Cortés in Spain, never visited the New World, but had access to the various reports sent to Spain regarding the conquest. Unfortunately in the writings of the eye-witnesses no detailed descriptive lists are to be found relating just what pieces of mosaic-work were obtained by Grijalva from the Mayan Indians of Tabasco and the people of the coast of the present State of Vera Cruz. The extended account given by Oviedo recites the voyage from day to day and the character of various objects received from the Tabasco Indians, followed by the list of specimens obtained from the Mexican Indians near the Isla de Sacrificios, Vera Cruz. We will quote from these lists later. Gomara’s list is quite extended. In the first part of his _Historia de las Indias_ he describes various articles procured by Grijalva from the Indians at the mouth of the river in Tabasco, to which his name was applied, followed in turn by the inventory of objects obtained at San Juan de Ulua, Vera Cruz. In the second part of his history, the _Conquista de Mexico_, he gives only a single long inventory of the barter obtained, as he says, “from the Indians of Potonchan [Tabasco], San Juan de Ulua, and other places of that coast.” It seems highly probable, however, that such interesting and valuable loot must have been accompanied with an inventory when it was sent to Spain late in 1518 or early in 1519 by Governor Velásquez. Oviedo mentions seeing the things, apparently in Barcelona, in May 1519. It is possible that both Oviedo and Gomara may have had access to such an inventory, or if not, they wrote their own descriptions of the objects after seeing them.