The dobra replaced the previous currency of São Tomé & Príncipe, the escudo, at a rate of 1:1 in 1977. At this time, coins were struck in cêntimos and lower denomination dobras (one, two and five dobra coins ). Rampant inflation made these coins obselete and in 1997, new coins were created with higher denominations (500, 1,000 and 2,000 dobra coins) to keep up with rising prices.