In 1931, Bhutan's currency situation was characterized by a dual system, deeply intertwined with its political and economic relationship with British India. The country had no independent, nationally minted currency in circulation. Instead, the primary medium of exchange was the
Indian Rupee, which flowed into Bhutan through trade, subsidies, and payments to officials. This practical adoption was a direct consequence of the 1910 Treaty of Punakha, which made Bhutan a British protectorate, guiding its foreign relations and firmly anchoring its economy to India's monetary sphere.
Alongside the rupee, a traditional barter economy and the use of
commodity money remained significant, especially in remote areas. The most notable traditional currency was the
Maartrum (or "Ma-trum"), a stamped silver bullion piece that was not a standardized coin but a weight of silver (approximately 11-12 grams). These were often used for larger transactions, savings, and religious offerings. Furthermore, other precious metals, grain, and textiles served as common means of exchange, reflecting a subsistence agricultural economy not yet fully monetized.
This period represented a quiet prelude to monetary reform. The dual system functioned but was inefficient for growing administrative and trade needs. The stability provided by the Indian rupee facilitated cross-border commerce, yet the lack of a sovereign currency was a marker of Bhutan's limited economic autonomy. The situation would remain largely unchanged until 1954, when the first official Bhutanese coin, the
Chetrum, was introduced under the Third King, Jigme Dorji Wangchuck, initiating the path toward a modern national currency.