The 2016–2017 500 Riyal note belongs to the series introduced partly in response to updated security standards that the earlier issues — running back to the 1980s De La Rue relationship — were no longer meeting. Thomas De La Rue has printed Saudi currency for decades, a commercial arrangement that has outlasted multiple Saudi governors and several significant oil-price shocks.
Pick 42 lists watermarking as the primary cited security feature, which undersells what De La Rue typically incorporated into Saudi high-denomination production by this period, though catalog documentation for the full security specification on this issue remains incomplete in most reference sources.
The 2016–2017 500 Riyal note belongs to the series introduced partly in response to updated security standards that the earlier issues — running back to the 1980s De La Rue relationship — were no longer meeting. Thomas De La Rue has printed Saudi currency for decades, a commercial arrangement that has outlasted multiple Saudi governors and several significant oil-price shocks.
Pick 42 lists watermarking as the primary cited security feature, which undersells what De La Rue typically incorporated into Saudi high-denomination production by this period, though catalog documentation for the full security specification on this issue remains incomplete in most reference sources.