Magnetic nano cache, bring your own pen. Simple off set multii.
The Grand Theatre in Lancaster, England is one of the oldest theatres in England and the third oldest in Britain, having been in near continuous use since 1782. Though it has seen numerous extensions and alterations, much of the original stone has survived. The theatre is recorded in the National Heritage List for England as a designated Grade II listed building.
Unfortunately the theatre is covered in scaffolding at the time of publication!
Find out more here.
At GZ, look for the notice board between the doors to the box office and the main entry doors. A phone number (ABCDE) FGHIJ is at the top of the noticeboard.
The cache is at:
N CG° A(C-D).A(C+D)D' W AAD° E(I-D).(D+J)(I-H)D'