Russia 1990 Soviet-Australian Scientific Co-operation in Antarctica set of 2 unmounted mint, SG 6151-52, Mi 6095-96*
Russia 1990 Soviet-Australian Scientific Co-operation in Antarctica set of 2 unmounted mint, SG 6151-52, Mi 6095-96*
Russia 1990 Soviet-Australian Scientific Co-operation in Antarctica set of 2 unmounted mint, SG 6151-52, Mi 6095-96*