1000 Đồng

By 1971, the National Bank of Vietnam was operating under severe inflationary pressure — the 1000 Đồng note, once a high denomination, had lost substantial purchasing power as the war economy accelerated money supply growth well beyond productive output. Thomas De La Rue's London facility produced the series, a common arrangement for South Vietnamese currency throughout the Republic's existence, as domestic printing infrastructure capable of handling security paper never developed locally.

Pick 29 collectors should note that the watermark is the primary security feature — no security thread was incorporated, a limitation that made counterfeiting a persistent operational concern for the Saigon government in its final years.