The organ was built in 1954 to replace an earlier instrument by Guildersleeve of London and consists of 2 manuals and 4 ranks of pipes all fully enclosed in a chamber fronted by a dummy pipe facade. The organ has the following original specification:

PEDAL
Acoustic Bass 32'
Sub Bass 16'
Salicional 8'
Flute 8'
Flute 4'
Trombone 16'
Trumpet 8'
Great to Pedal
Swell to Pedal

GREAT
Bourdon 16'
Open Diapason 8'
Harmonic Flute 8'
Salicional 8'
Octave 4'
Harmonic Flute 4'
Salicet 4'
Twelfth 2.2/3'
Super Octave 2'
Fifteenth 2'
Swell to Great

SWELL
Contra Salicional 16'
Harmonic Flute 8'
Salicional 8'
Harmonic Flute 4'
Salicet 4'
Nazard 2.2/3'
Piccolo 2'
Cymbale III
Trombone 16'
Trumpet 8'
Clarion 4'
Tremulant

ACCESSORIES
4 double touch thumb pistons to Great and Pedal
4 double touch thumb pistons to Swell and Pedal
4 toe pistons to Pedal
1 canceller thumb piston - Great to Pedal
1 canceller thumb piston - Swell to Pedal
1 balanced expression pedal - organ
1 balanced expression pedal - crescendo
Voltmeter
Double touch canceller to each department
3 ventil switches