| Image2 | |
| Cat Number | 675 |
| Description | Charles Ulm and Southern Cross |
| Denomination | 18c |
| Perforation | |
| Date Issued | 1978-04-19 |
| Variety | |
| Series | |
| Color | |
| Year | 1978 |
| Type | Commemorative |
| Image1 | |
| Ebaylink | https://www.ebay.com/sch/i.html?_from=R40&_nkw=Australia+stamp+675&_sacat=0&rt=nc&LH_Sold=1&LH_Complete=781 |
| ID | 781 |
| Sorter | 781 |