双蛇党軍票 [soujakutou gunpyou] or 'twin snake faction military scrip' in Japanese.
Final Fantasy XIV

Use: buy various items from Serpent Quartermaster / Gridania
Obtain: supply and delivery missions, GC quests, etc when participating as a member of the Order of the Twin Adder
Type: Currency, Stack: (varies by rank)
Description: -
A Realm Reborn

Use: buy various items from Serpent Quartermaster / Gridania
Obtain: dungeons, FATEs, supply and delivery missions, etc. when participating as a member of the Order of the Twin Adder
Type: Currency, Stack: (varies by rank)
Description: Company currency printed and distributed by the Order of the Twin Adder.
Category: Item