This is a pipe-dream coin that might be mine one day, but I don't know.
It's the Victoria 'old head' 1893 Five Pound Sovereign:

NOT the Proof, there were less than 800 of those minted and would be exponentially more expensive. The AU normal ones had 20'000 minted.

Only in 1887, 1893, and 1902 were these normal circulation types issued in addition to proof versions, but they probably didn't change many hands or spend much time in actual pockets.

The 1893 gold five pounds was issued in proof and normal (non-proof) versions, as part of the design change to an older portrait. Queen Victoria is wearing a veil as she was in mourning for her husband Prince Albert, who had died the previous year.

Ever since I saw the silver crown with the old head Victoria, I knew that was going to be my favourite portrait, even if it's not the rarest. There's just something I find really attractive or appealing about the veil with that crown peeking out of it. I'm not a fan of the Jubilee head, though. The tiny crown on top looks like a cupcake that's about to fall off?

While this £5 is the pipe dream, the more realistic one I might get a hold of but can't find a good source for is the £2 version or Double Sovereign old head. The 1887 one is the Jubilee portrait, by Joseph Edgar Boehm, so I'd try to get the 1893 instead:

There were 52,000 of those minted for 'circulation' as well as the 773 Proofs.