500 Rupees - Birendra Bir Bikram International Monetary Fund

Nepal joined the International Monetary Fund in 1961, but this issue marks the institution's 50th anniversary — a milestone that prompted commemorative programs from member states across South Asia. The Nepalese commemorative series of the early 1990s was struck under Birendra Bir Bikram Shah, whose reign ended in the 2001 royal massacre that effectively finished the Shah dynasty's hold on Nepal within a decade.

KM#1133 was produced in limited numbers for collector distribution rather than circulation, which is the norm for Nepalese silver issues of this weight class. Actual distribution figures remain poorly documented in secondary references.