The issuance celebrates the iconic yellow school bus and its role in ensuring that millions of children get to school and home again every day. The USPS Forever Additional Ounce stamp features a stylized illustration of a 21st century yellow school bus, in profile in front of a silhouetted schoolhouse that is more evocative of an earlier era. Artist Steve Wolf worked with art director Greg Breeding and stamp designer Mike Ryan. 40 USPS ADDITIONAL Ounce Postage Stamps of School Bus These stamps will always be equal in value to the current domestic ADDITIONAL Ounce postage price These self-adhesive stamps are being issued in Sheets of 20 Stamps and Coil of 100 Stamps Use 3 of these stamps to mail a 1oz first class letter.