Oman new 1-rial commemorative note (B236) confirmed

According to a press release dated 18 November 2015, on the occasion of the 45th National Day 2015, the Central Bank of Oman announced the introduction of a new commemorative 1-rial banknote.

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.
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B236 (PNL): 1 rial (US$2.60)
Purple. Front: Sultan Qaboos bin Said; coat of arms with crossed swords and khanjar (dagger); Al Alam Palace in Muscat, khanjar as registration device. Back: 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.
a. 1437 H / 2015 G. Signature 2. Intro: 18.11.2015.