It does look a bit odd now you mention it. The lines under the eyes and BM don't look quite right either.
Here's the link: https://www.ebay.co.uk/itm/267686864594?_trksid=p4375194.c102726.m162918
Does seem a strange one to copy though.
Can you crop the original photo to the area of interest and then compress the smaller area to 500kb if necessary?
The freeware irfanview will do the job very well.
Comparing it to my pair of 1844 crowns I'd say that's the top part of a cinqfoil. The star is larger and goes almost to trhe top of the N and I whereas the cinqfoil is smaller and goes about halfway up the letters.
It was probably part of an early attempt at decimalisation, with the florin (1/10 of a pound) being introduced in 1849. The intention may have been to replace the crown with the DF, but it didn’t quite work out.
I’m afraid not, but I’m really not an expert on these penny varieties. I am interested though and will go through my own old collection of bun head pennies at some time just in case.
If you wanted to be really fussy a full set would include the 1887 Arabic 1 and Roman 1 variants and the 1888 and 1889 Inverted 1 (or is it a die-filled normal I serif or broken punch?) for second I in Victoria variants. All three variants are listed in Spink so I think it's reasonable to include those in the set. I did anyway...