NO wonder…

       …I'd not seen one before.  Of course, I had to check
"Mary Somerville Fairfax, formerly Greig; 26 December 1780 – 29 November 1872) was a Scottish scientist, writer, and polymath.  She studied mathematics and astronomy, and in 1835 she and Caroline Herschel were elected as the first female Honorary Members of the Royal Astronomical Society."  One is forced to wonder? Is Jimmy any relative. ;¬  )
       I admit to saving different designs of £2 & 50P, but draw the line at Notes.