Heritage Auctions
Thursday 8 September 2016. An auction of world Banknotes, including some interesting Irish notes.Heritage auctions have a significant group of Ploughman notes, as well as other Irish notes in their upcoming sale on September 8th 2016.
It is unusual for a US-based auction to have a large offering of Ploughman notes.
Among the lots, there is a nice VF grade Northern Bank £10 note, estimated conservatively at 25,000–35,000 USD. This is the nicest Northern £10 that I have yet seen. There are two about vf notes recorded in PSS, the rest are low grade notes. It will be interesting to see what this note fetches.
Also being offered are four Northern £5 notes and 24 Hibernian Bank£5 notes, almost all of which are in the vf to ef region.
The appearance of so many £5 notes of one bank together will likely be reflected in weak prices realised—a good opportunity to pick up a decent fiver or two.
All of the notes are in PMG grading packets, some of them being overgraded imho.
Some of the estimates are too high for the fivers.
There are four Ploughman £10 notes, the best of which is the Northern Bank. Munster & Leinster, Hibernian, and Ulster are the other banks. DNW have a much nicer Hibernian £10 note in their upcoming auction.
Undoubtedly, the attention will be on the Northern £10, a nice example of a rare note. I remember when there were only three of these recorded, back around 1995.
EDIT: pic of the Northern £10 Ploughman £10 Pound note added.

There is a range of other Irish notes in the sale also, including some early northern Ireland notes.
EDIT: The note sold for $32,900 including fees.