POWER OF ATTORNEY
For Executing Forms 3, 4 and 5


KNOW ALL BY THESE PRESENTS, that the undersigned hereby
constitutes and appoints Phyllis Alden, Catherine M. Kilbane and
Robert P. Ryder, and each individually, his lawful attorney-in-fact to:

(1)	execute for and on behalf of the undersigned Forms 3, 4 and 5
in accordance with Section 16(a) of the Securities Exchange Act of
1934 and the rules thereunder;
(2)	do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete the
execution of any such Form 3, 4 or 5 and the timely filing of such form
with the United States Securities and Exchange Commission and any
other authority; and
(3)	take any other action of any type whatsoever in connection with
the foregoing which, in the opinion of such attorney-in-fact, may be of
benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the document executed by such
attorney-in-fact on behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in fact may approve in her or his
discretion.
The undersigned hereby grants to each attorney-in-fact full power and
authority to do and perform all and every act and thing whatsoever
requisite, necessary and proper to be done in the exercise of any of
the rights and powers herein granted, as fully to all intents and
purposes as such attorney-in-fact might or could do if personally
present, with full power of substitution or revocation, hereby ratifying
and confirming all that such attorney-in-fact shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and
powers herein granted.  The undersigned acknowledges that each
foregoing attorney-in-fact, in serving in such capacity at the request of
the undersigned, is not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange
Act of 1934.
Unless earlier revoked, this Power of Attorney shall expire on February
28, 2008.
IN WITNESS WHEREOF, the undersigned has caused this power of
attorney to be executed as of this 20th day of December, 2003.


___________________________
William R. Mason