Heya dude. Those are not coins we have ever used in HQ. Those are not alliance coins. No chapter that I am aware of on the east coast has minted their own platinum. Those are not from alliance my dude.
Also all alliance coins have the starburst on one side with the other being the number value.
I hadnt bought those yet. But yup still I dont believe these are ours.The new 2019 coins have a tree on the back and their denomination on the front.