25 Leva Summer Olympics

Bulgaria's 1990 Summer Olympics issue commemorates the 1992 Barcelona Games, struck two years in advance as part of a broader Bulgarian program of silver sports commemoratives that flooded the collector market through the late 1980s and early 1990s. The Bulgarian National Bank was unusually prolific in this period, issuing themed silver pieces at a pace that outstripped genuine collector demand and left many series trading well below face value on secondary markets within a decade of issue.