1d. Queensland QO varieties

The most famous variety, albeit unlisted in catalogues, is the fabled OOeensland variety

A lot has been written on this stamp and its provenance and authenticity, which I won't repeat here. Full discussions can be found here and here

QO Variety
The listed variety is "QO" QOeensland instead of Queensland. It occurs as the 48th stamp in the first plate and was caused by the electro sticking to the matrix, tearing away a portion of the raised surface. A second plate was made in 1880 and this variety occurred in position no 44. A third plate was prepared after March 1881 and there is no trace of the "QO" in this plate.

A QO example on a burele band. Ex Manning

A block of 60, fiscally used, 14 February 1883. In the collection of Dave Elsmore with the QO variety at position 44 (2nd row from bottom position 4)

Another QO example

An incredible number of QO varieties, from the collection of Carl Burnett

And here is a montage of many of them!

One more QO from Carl Burnett

Watermark 2nd crown over Queensland. Dated 8 June 1882. Seen at Premier Postal auction no 73

Seen at Premier Postal auction no 52

Seen at Premier Postal auction no 51

Watermark 2nd crown over Queensland. Seen at Premier Postal auction no 54

Seen at Phoenix auction no 8

Seen on Ebay 

SG13ab SG 134ab WMK6 print error Q"O"EENSLAND. From my collection

Qoeensland. Seen on Ebay

2 more examples of Qoeensland. Seen at Prestige Philately auction no 152

Qoeensland. From the collection of Carl Burnett

Qoeensland. A beautiful example seen on Ebay

My examples

Dave Elsmore's examples

Seen in the Queensland Stamp collecting Facebook Group

Seen in the collection of Dr Tim Dexter