https://en.numista.com/forum/topic1073.html
I have one as well, but on my own spreadsheet I have it down as KM# 144
That is also the reference given (as a note) on the KM# 148 link you provided
I remember this coin coming up before, and show the link to the Topic - (from August last year) where M@verick of the Numista team said it is KM# 144
On the page from within my link is stated the head size is the difference, and even at the time when I checked my own coins I could
not see that difference.