Issued by Australia in 1978, this commemorative stamp celebrates National Stamp Week and marks the 50th anniversary of the historic 1928 National Stamp Exhibition. The design prominently reproduces Australia’s famous 1928 3d Kookaburra, the nation’s first commemorative stamp, making it highly appealing to thematic and classic-era collectors. The stamp connects modern philately with early Australian exhibition history and organized stamp collecting culture. Its exhibition theme makes it especially desirable for philatelic event and postal history collections. A meaningful issue for collectors focusing on stamp-on-stamp designs and philatelic anniversaries.