1951
It was held in 1951
There was no "Festival of Britain" Florin minted, you possibly refer to the "Festival of Britain" Crown (Five Shillings). See "What is the value of a 1951 British Crown - Festival of Britain".
Do you mean the Festival of Britain in 1951?
in britten Britain in 1951.
1951
The Festival of Britain was a national exhibition which opened in London and around Britain in May 1951. The official opening was on May 3.
There is no documented evidence of a minting flaw in the "Festival of Britain" Crown, but it is possible. A reputable coin dealer will be able to advise.
4000 gbp
El Paso, Texas
The year the harvest festival began is 1834
4000 gbp