This organ was in Lower Hutt since the mid to late 50's, I believe. It was a Christy organ (theatre wing of Hill, Norman and Beard), modified extensively by Monk and Gunther, who replaced the console and removed the toy counter, and imported into New Zealand after WW2.
It has the following ranks:
Bourdon 16' -> 2' (pierced stoppers from 4' c)
8 -> 2 Dulciana
8 -> 4 Open Diapason
8 -> 4 Geigen Principal
8 Celeste (TC)
4 Rohr Flute (added in the 60's)
8 Tuba (58 reeds, 3 flues, top 3-4 octaves are harmonic).
The organ used to speak on about 6-7" WP, but was reduced to around 4 1/2". I don't know how well or otherwise the voicing was, as the church bought a digital organ several years ago and the organ's console cable was cut.
The 16' bourdon is the largest scale bourdon I've ever seen. It's 8' CC is the same scale as the 16' CCC on the other bourdon I have.