En fait, suffisait de lire le WC...
Quote: Standard Catalog of World CoinsNAZARANA ISSUES
Throughout the Indian Princely States listings are Nazarana
designations for special full flan strikings of copper, silver and
some gold coinage. The purpose of these issues was for presentation
to the local monarch to gain favor. For example if one
had an audience with one's ruler he would exchange goods, currency
notes or the cruder struck circulating coinage for Nazarana
pieces which he would present to the ruler as a gift. The borderline
between true Nazarana pieces and well struck regular issues is
often indistinct. The Nazaranas sometimes circulated alongside
the cruder “dump” issues.