Hi, have heard of premier open shows but not platinum? Does this differ from a normal open show?

Looked at the schedule and noticed this.

Thanks!

I wonder if this means its a special anniversary like silver, ruby or diamond?
Platinum would be 75 years.
Yes the more I think of it, the more likely this is the case.

Thanks, looking at the schedule again it looks like its the 70th show :)

is it in the north west?

Kent :)