| Image2 | |
| Cat Number | 550 |
| Description | Shipping Industry |
| Denomination | 20c |
| Perforation | |
| Date Issued | 1973-06-06 |
| Variety | |
| Series | |
| Color | multi |
| Year | 1973 |
| Type | Commemorative |
| Image1 | |
| Ebaylink | https://www.ebay.com/sch/i.html?_from=R40&_nkw=Australia+stamp+550&_sacat=0&rt=nc&LH_Sold=1&LH_Complete=635 |
| ID | 635 |
| Sorter | 635 |