3837-3840 Aboriginal Culture 'SPECIMEN SET' with 3839 being the incorrect 12c error that was never issued. Also included is the original four page Philatelic Bulletin (2 images)

3837-3840 Aboriginal Culture 'SPECIMEN SET' with 3839 being the incorrect 12c error that was never issued. Also included is the original four page Philatelic Bulletin (2 images)