Like B511, but with new portrait engraving and new date.
B520 (PNL): 5,000 kip (US$0.60)
Brown. Front: Lao text; Kaysone Phomvihane; Wat That Luang stupa in Vientiane; coat of arms. Back: Lao text; cement factory. Solid security thread with demetalized 5000 and Lao text. Watermark: Wat That Luang stupa. Printer: (Unknown). 152 x 68 mm. Paper.
a. 2020. No sig. Prefix AA.
Courtesy of Sejin Ahn (http://www.facebook.com/myriakorea).