Issuer:

Trade date:

Settlement date:

Maturity date:

Minimum denominations:

Total principal amount:

Maximum over-allotment amount:

Coupon:

Public offering price:

Net proceeds to issuer:

Interest payment dates:

Day count:

Conversion price:

Conversion rate:

Conversion premium:

Call protection:

Put dates:

Applicable Price

$41.17

$45.00

$50.00

$55.00

$60.00

$65.00

$70.00

$75.00

Maximum conversion rate (subject to adjustment):

Pro forma as adjusted numbers as of September 30, 2006:

•    Cash and cash equivalents: $74,157,000

•    3.875%convertible senior notes offered hereby: $135,000,000

•    Total capitalization: $1,542,445,000

CUSIP:

Principal amount of notes to each underwriter:

Credit Suisse Securities (USA) LLC                 $121,500,000

A.G. Edwards & Sons, Inc.                                $4,500,000

Robert W. Baird & Co., Incorporated                 $4,500,000

Raymond James & Associates, Inc.                   $4,500,000

                                                                            $135,000,000

Underwriting discounts and commissions:

Tax – Amortizable bond premium

If a U.S Holder purchases a debt instrument for an amount that is greater than the sum of all amounts payable on the debt instrument after the purchase date, other than payments of qualified stated interest, such U.S. Holder will be considered to have purchased the debt instrument with “amortizable bond premium.” In general, amortizable bond premium with respect to any convertible debt instrument (such as a Note) will be equal to the excess, if any, of the tax basis (reduced as set forth in the following sentence) over the sum of all amounts payable on the debt instrument other than qualified stated interest. For this purpose only, a U.S. Holder’s tax basis in a convertible debt instrument is reduced by an amount equal to the value of such U.S. Holder’s option to convert the convertible debt instrument for other property (such as cash and WRIT’s common shares); the value of this conversion option may be determined under any reasonable method. However, in the case of a debt instrument that may be redeemed prior to maturity at the option of the issuer (such as a Note), the amount of amortizable bond premium is determined by substituting the first date on which the debt instrument may be redeemed (the “redemption date”) for the maturity date and the applicable redemption price on the redemption date for the amount payable at maturity, if the result would maximize the U.S. Holder’s yield to maturity. If the issuer does not in fact exercise its right to redeem the debt instrument on the applicable redemption date, the debt instrument will be treated (solely for purposes of the amortizable bond premium rules) as having matured and then as having been reissued for the U.S. Holder’s “adjusted

acquisition price,” which is an amount equal to the U.S. Holder’s basis in the debt instrument (as determined under the applicable Treasury Regulations), less the sum of (1) any amortizable bond premium allocable to prior accrual periods and (2) any payments previously made on the debt instrument (other than payments of qualified stated interest). The debt instrument deemed to have been reissued will again be subject to the amortizable bond premium rules with respect to the remaining dates on which the debt instrument is redeemable.

A U.S. Holder may elect to amortize bond premium on a debt instrument. Once made, the election applies to all taxable debt instruments then owned and thereafter acquired by the U.S. Holder on or after the first day of the taxable year to which such election applies, and may be revoked only with the consent of the IRS. The election, therefore, should only be made in consultation with a tax advisor. In general, a U.S. Holder amortizes bond premium by offsetting the qualified stated interest allocable to an accrual period with the bond premium allocable to the accrual period, which is determined under a constant yield method pursuant to the applicable Treasury Regulations. If the bond premium allocable to an accrual period exceeds the qualified stated interest allocable to such period, the excess is treated by the U.S. Holder as a bond premium deduction. The bond premium deduction for each accrual period is limited to the amount by which the U.S. Holder’s total interest inclusions on the debt instrument in prior accrual periods exceed the total amount treated by such U.S. Holder as a bond premium deduction on the debt instrument in prior accrual periods. Any amounts not deductible in an accrual period may be carried forward to the next accrual period and treated as bond premium allocable to that period.

The U. S. Holder’s tax basis in the Notes will generally equal the amount the holder paid for the Notes, adjusted by subtracting any payments (other than of qualified stated interest) received on the Notes and any amortizable bond premium taken by the U.S. Holder with respect to the Notes.