The Cleveland Museum of Art has boosted its smallish but choice pre-Columbian collection significantly by acquiring a dozen rare and important gold objects of a type that once lured Spanish conquistadors to the New World.

Bought in March in a private sale arranged by Sotheby's in New York for an undisclosed price, the gold pieces will go on view at the museum in a special exhibition starting Saturday May 16. The museum plans to install them in the pre-Columbian galleries by August, after making room by adjusting space in display cases.