During the long reign of Queen Victoria (1837-1901) there were four major designs issued for florins, the two Gothic Types, A and B, then the Jubilee and Veiled Head types towards the end of the reign.

With the 50th anniversary of her reign in 1887, a new type came out, replacing the Gothic type, namely the Jubilee type. A small number of proof sets were issued in 1887 in honor of her 50 years on the throne., somewhere around 1000 sets if I am not mistaken. Most of the sets now seem to have been broken up and individual pieces appear on the market.

Here is an example of a proof Jubilee type Victoria Florin, taken from one of those sets. Here the words Dei Gratia are written out in full on the obverse, unlike the earlier type.