25 Rupees - Elizabeth II Silver Jubilee

Issued to mark the 25th anniversary of Elizabeth II's accession, this piece belongs to a wave of Commonwealth commemoratives struck in 1977 — Mauritius among dozens of nations that commissioned silver jubilee coinage that year. The .500 fineness reflects a deliberate cost compromise common to smaller Commonwealth issuers during the mid-1970s silver market, when spot prices made fine silver commemoratives financially awkward to produce at accessible face values.