| Image2 | |
| Cat Number | 549a |
| Description | Block of 4 #546-9 |
| Denomination | |
| Perforation | |
| Date Issued | 1973-05-16 |
| Variety | |
| Series | |
| Color | |
| Year | 1973 |
| Type | Definitive |
| Image1 | |
| Ebaylink | https://www.ebay.com/sch/i.html?_from=R40&_nkw=Australia+stamp+549a&_sacat=0&rt=nc&LH_Sold=1&LH_Complete=634 |
| ID | 634 |
| Sorter | 634 |