B44 (PNL): 20 rials (US$52)
Blue, yellow, and purple. Front: Coat of arms with crossed swords and khanjar (dagger); Grand Mosque; Sultan Qaboos bin Said; main entrance of the CBO headquarters. Back: Royal Opera House building; 40th National Day logo; coat of arms. varifeye thread and windowed security thread with demetalized 20 RIALS. Watermark: Sultan and electrotype 20. Printer: (G&D). 167 x 76 mm. 1431 H / 2010 G. Signature 4. Intro: 22.11.2010.