BROOKMAN STAMP COMPANY & Michael JAFFE DUCK STAMPS ABOUT US. We are a full retail and mail order stamp dealer located in Vancouver, Washington. We are open Monday through Friday from 8:30am to 5pm Pacific Standard Time. COMBINED SHIPPING. If you want to save on shipping, please wait for us to send you a final invoice with all your purchases combined. HANDLING TIME. Orders will normally ship within 1 day from receipt of payment. Orders on Friday 1:00 PM through Sunday will be shipped the following business day (Monday). FEEDBACK & RETURNS. If you are not satisfied with your purchase please contact us and we will resolve the problem and answer any questions you may have.