Spurious dates for Ireland P#70? [opgelost]

The last three dates for Ireland £1 P#70 don't appear in either Bank Note Museum or irishpapermoney.com. Each has a single "owner". Can these members be contacted to verify these dates? Failing that, can they be moved to the Undetermined year line so the three dates can be removed? The dates in question are
1/8/1989
13/11/1989
29/11/1989

There are 67 dates for the Central Bank of Ireland p70.
All of the dates are listed here, with a picture of a note of each date.
https://www.irishpapermoney.com/b-series-notes/date1/bb1/index1b.html

If there were additional dates, we (the Irish collectors) would have seen them by now.
I spent a lot of lunch breaks scavenging through bundles of these £1 notes looking for replacements.

Note, all of the three dates in question are subsequent to the final date of the £1 note, 17.07.89. They also do not correspond to any dates of the other denominations of this series (I checked this just now).

An example of each date of every denomination of the Irish Series B notes (1976-1993) is on irishpapermoney.com, accessible from this page:
https://www.irishpapermoney.com/b-series-notes/ireland-banknotes-b-series-dates.html

Citeer: "ceh2019"​The last three dates for Ireland £1 P#70 don't appear in either Bank Note Museum or irishpapermoney.com. Each has a single "owner". Can these members be contacted to verify these dates? Failing that, can they be moved to the Undetermined year line so the three dates can be removed? The dates in question are
​1/8/1989
​13/11/1989
​29/11/1989
​

​I asked the members to confirm and provide pictures. Let's wait for their follow-up.

It will be interesting to see them provide pictures of dates which do not exist :D

17 July 1989 is definitely the very last date for the 1 Pound note in Ireland, as the 1 Pound note was on the way out in 1990 - replaced by the very large 1/2 Crown - sized 1 Pound coin.

Aidan.