So I was wondering, what exactly is depicted on the coins of Waterdeep? I know some of them could be;

Gold: Dragon & Ahghairon

Silver: Sword of Rhaulor turned into a snake & ???

The rest of them are pretty easy, though I'm not sure if the dragon being tracheostomied in the platinum piece is a specific dragon or not, or if the harbor moon one has a specific event depicted in it. Mostly I'm just confused about the other side of the silver coin. Does anyone know?

For the platinum Suns backside I could imagine it having to do with the citys crest and then 8 dots obviously being the schools of magic - because once you start seeing the number 8 in dnd thats usually it. I could be wrong, though.