Ever since Michael Freeman gave a degree of "validation" to this sort of flaw by recording the 1897 Dot as F147, more and more examples have been found.
The following is an excerpt from the page on Dot pennies on my rarest pennies site.
https://rarestpennies.wordpress.com/scarce-dot-pennies/
There are many examples of pennies with small raised circular “dots” on either the obverse or reverse, now thought to be caused by a rust spot on a working die which eventually is removed by successive strikes leaving an incuse area which produces the raised flaw when creating the coin (see my article in Coin News June 2022 quoting Paul Holland's investigations into the cause).
As I wrote in an earlier post -
Regarding pennies, an addition not incorporated into the 1985 edition:
Page 31, number 80A (1875 8+H with H below date) - can we assume that this coin does not exist ?
Some of the changes/additions were incorporated in the 1985 edition but at least one (the one above) was not. I have only checked the comments on pennies.
Get in quick for this one:
https://www.ebay.co.uk/itm/187859014593?itmmeta=01KCWD3RSPGS13XT0BRGS6G0P9&hash=item2bbd4513c1:g:jDsAAeSwnv1pRbEi&itmprp=enc%3AAQAKAAAA4FkggFvd1GGDu0w3yXCmi1fvsd0HwSoi3YVy3fEVKmzOU8EzcZuz8p%2FWljDDMPKaHkCqMoBVOUyU20uY%2Fk16edJXx5F6RDVCUVj8YBpZ0bcKH4TvJgCIt53fO1P%2BB7p7IPC3zyoGCpItoclwOlycCLt6syNuMKQL398SvgN%2FRbMQ5CT6ipDKzZzuKktdX4sH%2B8qBURpxXSMEif7ItzhiHxh%2FixUe1Ps9LJIKs31ia1sUwLyxkzevXuUrmv51nI5KQUj9qzfXRVg2jy%2BvtCqCJgBBXqOe%2Bv5PwAVO1oJdvZ50|tkp%3ABk9SR4aNj43nZg
Regarding pennies, an addition not incorporated into the 1985 edition:
Page 31, number 80A (1875 8+H with H below date) - can we assume that this coin does not exist ?
I have never seen it referenced anywhere, including Gouby.