EAGLE LOGO NUMBER 	SHARES BOS	Cambex CORPORATION 	INCORPORATED UNDER THE LAWS OF 	THE COMMONWEALTH OF MASSACHUSETTS 	CUSIP 132008 10 3 THIS CERTIFIES that 							SEE REVERSE FOR CERTAIN DEFINITIONS is the owner of fully-paid and non-assessable shares of the COMMON STOCK, $.10 par value, of CAMBEX CORPORATION transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby are issued and held subject to the laws of The Commonwealth of Massachusetts, the Articles of Organization of the Corporation, as amended, and the By-Laws of the Corporation, as amended. This Certificate is not valid until countersigned by the Transfer Agent. IN WITNESS WHEREOF, the Corporation has caused this Certificate to be executed by the facsimile signatures of its duly authorized officers and sealed with the facsimile seal of the Corporation. Dated CAMBEX CORPORATION CORPORATE SEAL 1968 MASSACHUSETTS * 								CAMBEX CORPORATION /s/	David L. Cross 	/s/ Joseph F. Kruy TREASURER PRESIDENT COUNTERSIGNED: 	AMERICAN STOCK TRANSFER & TRUST COMPANY 	(NEW YORK, N.Y.) 		TRANSFER AGENT BY AUTHORIZED SIGNATURE 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		under Uniform Gifts to Minors 		of survivorship and not as		Act ______________________ 		tenants 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.