In the Grand Company Guide on the Lodestone, there is a section "Grand Company Seals".
The second sentence goes as follows:
"Each organization issues its own unique type of sea, which serves as a currency of sorts and can be used to redeem myriad useful items."

I guess this should be:
"Each organization issues its own unique type of seal, which serves as a currency of sorts and can be used to redeem myriad useful items."

(I hope this is the correct section)