On the page for Riau KM# 8 (https://en.numista.com/catalogue/pieces95953.html) the illustrations for varieties KM# 8.1 and KM# 8.2 are reversed from the illustrations in SCWC 39th ed. 2012. In SCWC KM# 8.1 is the "squat" or "large" 5 and KM# 8.2 is the "small" 5. On the Numista page reference is made to the Irian Barat coins with KM# 8 supposedly matching Riau KM#8.1 but Irian Barat has the same varieties as Riau in SCWC (although there seems to be consensus on the Internet that KM# 8.1 for Irian Barat does not exist).
The photo in Comments needs 8.1 and 8.2 switched(8.1 is the large 5 and 8.2 is the small 5; the captions for large and small are correct, only the KM numbers are reversed) and "Irian Jaya #8" changed to "Irian Jaya #8.2".
Alternatively photo in Comments could be deleted and comment in date line for KM#8.1 changed to "KM#8.1, large or squat 5 per Krause". Comment in date line for KM8.2 could be changed to "KM#8.2, small 5 per Krause".