| Image2 | |
| Cat Number | 617c |
| Description | Australian Telecommunications |
| Denomination | |
| Perforation | |
| Date Issued | 1975-07-01 |
| Variety | Se-tenant pair #616a & 617b |
| Series | |
| Color | |
| Year | 1975 |
| Type | Commemorative |
| Image1 | |
| Ebaylink | https://www.ebay.com/sch/i.html?_from=R40&_nkw=Australia+stamp+617c&_sacat=0&rt=nc&LH_Sold=1&LH_Complete=712 |
| ID | 712 |
| Sorter | 712 |