There are unconfirmed reports that the bank immediately withdrew the note because of an error in the Hijri year on the front of the note below the signature. It should be ١٤٣٧ (1437) but appears as ١٤٢٧ (1427). The date is correct on the back as 1437 H / 2015 G.
B237 (P48): 1 rial (US$2.60)
Purple. Front: Arabic text; Sultan Qaboos bin Said; coat of arms with crossed swords and khanjar (dagger); Al Alam Palace in Muscat, khanjar as registration device. Back: English text; flowers; khanjar; Desert white butterflies (Pontia glauconome); 45th National Day logo; Sultan Qaboos University in Al Khoudh in the Muscat Governorate. Two-tone windowed security thread. Watermark: Sultan. Printer: (Unknown). 140 x 71 mm. Paper.
a. ٢٠١٥/2015. Sig. 2: bin Said.
Error: ٢٠١٥/١٤٢٧ (AH1427) below sig.