Supporters of the so-called Islamic State have released pictures of what they said were new gold dinars on social media, amid a propaganda drive by the group as it approaches its one-year anniversary.

Abu Ibrahim Raqqawi, an anti-Isis activist who reports on events in the extremists’ Syrian stronghold for his website Raqqa Is Being Slaughtered Silently, shared photos of one and five dinar coins.

“Isis say soon they will deal with the new coins,” he wrote on Twitter.

Both appear to be embossed with a message “The Islamic State – a caliphate based on the doctrine of the Prophet” in Arabic on one side with a world map on the five dinar coin, and seven wheat stalks referencing a Koran verse on the smaller denomination.

If the coins are real, they are unlikely to be much use. Accurate estimates of the value are impossible as the weight of the metal is unclear and there is no international exchange rate for an unrecognised currency.

READ MORE: ISIS DESTROYS ANCIENT MONUMENTS IN SYRIA
ISIS PROPAGANDA REACHES NEW LEVELS OF BRUTALITY
ISIS ‘CRUCIFIES CHILDREN FOR NOT FASTING DURING RAMADAN’

It is also unclear how Isis would mint enough coins to replace national currencies in its strongholds and all photos so far appear to show the same two coins.

Gold, silver and copper are not mined in Iraq or Syria and experts believe any precious metals the group possesses have been purchased, stolen or looted in other forms and melted down. READ MORE