Sect. 1st. There shall not be established or incorporated, in this state, any Bank or Banking company or monied institution, for the purpose of issuing bills of credit, or bills payable to order or bearer; Provided that nothing herein contained shall be so construed as to prevent the General assembly from establishing a State Bank, and branches, not exceeding one branch for any three Counties, and be established at such place, within such Counties, as the directors of the State Bank may select; provided there be subscribed, and paid in specie, on the part of individuals, a sum equal to thirty thousand dollars: Provided also, that the Bank at Vincennes, and the Farmers' and Mechanics' Bank of Indiana, at Madison, shall be considered as incorporated Banks, according to the true tenor of the charters granted to said Banks, by the Legislature of the Indiana Territory: Provided that nothing herein contained shall be so construed, as to prevent the General Assembly from adopting either of the aforesaid Banks as the State Bank: and in case either of them shall be adopted as the State Bank, the other may become a branch, under the rules and regulations herein before prescribed.