Australia Adelaide 2016 30c emergency issue commercially used on piece

Domestic Letter rates were increased heavily on January 4 in Australia – by about 40% for the cheapest speed domestic letter. The new price was One Dollar so you need an extra 30c to mail legally. This created a stamp shortage and one State printed their own 30c values. The price of these Emergency issues is totally going through the roof in Australia as only about 200 mint sets 6 are estimated to exist in collector hands globally. A single stamp along with a normal 70 stamp (the same values and used on the same date to this) both on piece torn sold for over AS2025 on ebay