Coin Tokens come from the supply of Coin tokens, and return there; they don't seem to be taken from other mats or other players. Coffers are represented by Coin tokens, which can also be useful for Villagers and a range of other functions. Prior to the revised version in https://financefeeds.com/temenos-appoints-ex-lseg-barb-morgan-as-chief-product-and-technology-officer/