The limited edition series will come out this year.
Sesame Street - Building Toys
USPS to release 'Sesame Street' stamps in honor of show's 50th anniversary - ABC News
U.S. Postal Service Reveals 'Sesame Street' Stamps
Stories - AZPM
News, Archive - AZPM News - AZPM
AZPM News, Archive - AZPM News - AZPM
USPS to Release Sesame Street Stamps for Series' 50th Anniversary
Sesame Street - Building Toys
USPS® Sesame Street Commemorative Forever® Stamps
Stories - AZPM
USPS letter carrier visits 'Sesame Street
AZPM Unveils Cutting-Edge Public Media Facility - AZPM