Cover bearing a special postmark 12.12.12. This special date pattern, when all three numbers in a date are the same, won't occur until after 88 years.
2012 Australia stamp - Christmas
Stamp used on the envelope is from the 2012 Christmas series issued on November 1, 2012 depicting both religious and non-religious themes. The non-religious stamps show Rudolph and presents (local card rate 50c) and bells (local mail 60c) while the religious ones show The Adoration of the Magi from a wool and silk tapestry in the Art Gallery of South Australia - local card rate (55c) and international card rate ($1.60).