2 x Specimen Banknotes comprising: (1) Bahrain Currency Board 10 dinars 1964 Arabic serial No 006606 preceded by a Maltese Cross, obv. dhow at left, arms at right, rev. aerial view of the town of Isa, watermark falcon's head, SPECIMEN in red across centre both sides UNC & (2) Bank of Sudan 50 piastres 1981, serial No B/1 000000, obv. President Nimeiri at left, arms in centre, rev. façade of Bank of Sudan, SPECIMEN in red in English & Arabic across centre both sides UNC