As far as New South Wales goes, Jeffryes is better known for his forged 1st barred numerals types on his Sydney Views and Laureate forgeries.
I found this Jeffryes forgery recently, with a forged rays type cancel of Hartley. Even the 6 watermark is forged!
These stamps are undenominated but paid the 6d registration fee. They were withdrawn on 1 January 1868 when the fee was reduced to 4d and was then paid using ordinary postage stamps.
After looking through some auction catalogues, I found another example. This one is from the Carrington auction (Millennium, November 2012) lot no. 471.
This one has a forged cancellation of Shoalhaven. Sorry about the picture, the source file is quite small.