Salvation Army Citadel Church.
Built in 1927 by Oswald Archer.
To find this cache go to the building, you will find two names on plaques on the LH side of the front aspect
Convert the initial and surname letters to numbers A = RH B = LH
N50 46.C E000 15.D where C = ((A+B)*3)+95 and D = (B-A)-9