Quote:
Not from a cancellation as the stamp still has gum.
Australia is known for issuing many, many stamps as CTO (Cancelled to Order) for collector sets. On Scott 183A, this would be a small, possibly light strike on one of the corners of the stamp, and you would still have full gum on the back. I don't have a copy of 183A as a CTO, but ACSC says that it exists, hence my request to see a scan of the full stamp.
However, as you can see from my partial scan, this stamp has loads of production issues, so I would characterize it as normal.
Thanks for posting.