This is one of 40 idols needed to make the special Legendary token: Totem of Wonder.
Equivalent to 50 GP
Gold Piece or GP equivalent tokens may be hoarded as treasure, traded with other adventurers (big-time token collectors may be especially interested in GP), exchanged for NPC services outside of the adventure, used as currency to bid on items in the True Dungeon auction, or exchanged for transmuted tokens on https://www.truedungeon.com/transmuted.