1 Exhibit 4.1 NUMBER INCORPORATED UNDER THE LAWS OF THE STATE OF OHIO SHARES G 0002 BANCFIRST OHIO CORP. CUSIP 059450 10 6 See Reverse Side For Certain Definitions ZANESVILLE, OHIO COMMON STOCK Par Value $10.00 Per Share This Certifies That SPECIMEN is the owner of Fully Paid and Nonassessable Shares of the Common Stock of BANCFIRST OHIO CORP. The shares represented by this certificate are transferable only on the stock transfer books of the Corporation by the holder of record hereof, in person, or by duly authorized attorney or legal representative, upon the surrender of this certificate properly endorsed. This certificate and the shares represented hereby are issued and shall be held subject to all the provisions of the Articles of Incorporation and any amendments thereto (copies of which are on file with the Transfer Agent), to all of which provisions the holder by acceptance hereof, assents. The shares represented by this certificate are not insured by the Federal Deposit Insurance Corporation or any other government agency. In Witness Whereof, the said Corporation has caused this certificate to be signed by its duly authorized officers and its Corporate Seal to be hereunto affixed. Dated: /s/ James H. Nicholson /s/ Gary N. Fields SECRETARY BANCFIRST OHIO CORP. PRESIDENT ZANESVILLE, OHIO CORPORATE SEAL COUNTERSIGNED AND REGISTERED: CHEMICAL MELLON SHAREHOLDER SERVICES TRANSFER AGENT BY AND REGISTRAR, AUTHORIZED SIGNATURE. 2 The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM - as tenants in common UNIF GIFT MIN ACT-________CUSTODIAN____________ TEN ENT - as tenants by the entireties (Cust) (Minor) JT TEN - as joint tenants with right of under Uniform Gifts to Minors survivorship and not as tenants Act__________________________ in common (State) Additional abbreviations may also be used though not in the above list. For value received,____________________hereby sell, assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE ______________________________________ _________________________________________________________________________________________________________ (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ ___________________________________________________________________________________________________shares of the capital stock represented by the within Certificate, and do hereby irrevocably constitute and appoint ____________________________________________________________________________________________________Attorney to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. Dated___________________ ______________________________________________________________________________________________ NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.