The co-ordinates bring you to the second little theatre in my “stage” series of caches.
This theatre building was opened in 1959 by Dame Sybil Thorndyke, who said "An amateur is one who loves the theatre, who performs because he is dedicated to it, not merely earning a living. All of us who really care for the theatre are amateurs".
This theatre stages around 10 productions a year including a youth group show.
The cache is not here but you will see two car park signs, main car park and staff car park, you will find the cache and the following.
From the main car park sign,
N51° 27. (2nd word) (3rd word / 2) (1st word + (5th / 6th word))
And the staff car park sign
E000° 11. (3rd word) (5th + 4th word) (1st + last word).
You are looking for a 1.5 ml container.