Opus 3 and Opus 4 are both two stop, one rank continuos. They are identical to each other except for the wood used for the cases. They have a single rank of pipes that plays at both 8’ and 4’ pitch by way of a transmission. The bottom two octave are stopped and the rest of the pipes are open.
The organs come in two parts. The base contains the blower and reservoir and is built on casters so that the organs can be easily moved on flat surfaces without any disassembly. The top section contains the windchest, pipes and manual. There are retractable handles on each end so that two people can comfortably lift the top section. The exterior dimensions of the complete organ are 990mm wide by 900mm tall by 415mm deep (39.0" x 35.4" x 16.3").
Cabinetry: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-02-27
Angled view of entire organ: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-02-27
Music rack adjustable support: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-02-27
Stop controls: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-02-27
Lower portion, containing blower and regulator: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-01-31
Upper portion, showing pipework: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-05-02
Manual key detail: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2011-05-02
Interior view during construction, pallet box and grid: Photograph from an archival source: Builder's website, submitted by Paul R. Marchesano. Taken on 2010-09-02
