Watch List notes:

Victoria, proof 'Gothic' florin, 1871, crowned bust left, rev. crowned cruciform shields, reeded edge (S.3893; ESC.2875), certified and graded by NGC as Proof-64+, reflective surfaces beneath pleasing golden grey iridescent toning, especially choice and very rare as such
The only one graded as Proof-64+ by NGC, none higher.

Estimate: 5000 - 5500 GBP