Updated through online information from John Collins.
You can tell it is a tracker by the sound.
Status Note: There 1987.
Pipework rescaled to lower pitch. Feeders & reservoir releathered by Andover.
Organ in alcove at rear(?): Photograph from an archival source: 1987 OHS Handbook, William T. Van Pelt, submitted by Paul R. Marchesano. Taken approx. 1987