Around eleventh century AD new series of coins named sivaka and drama  were issued in Nepal. The museum has a collection and also displaying some of these rare collection and also displaying some of these rare coins of early medieval period.

The Malla Kings of Kathmandu Valley introduced the beautiful silver coins in various denominations. They are magnificent in their execution. The first silver coin issued by Jaya Indra Simha Dev of Dolakha in 1545 AD is also preserved and displayed in the museum. The Malla coins of medieval period are beautifully designed with various religious symbols and floral decorations including the dating in Nepal Samvat.

The smallest silver coin, known as Fukkadam (Jawa in Newari) is one of the special attractions of this museum.

During the medieval period, Malla rulers entertained the privilege of issuing the coins for Tibet and earned good amount of profit.