Foto’s: John Salmon © 2002
In 1871 bouwde de firma Speechly & Ingram een orgel voor Saint Mark’s Church in Dalston. Het instrument is in de loop van de tijd ingrijpend verbouwd. In 1991 is het instrument door Saxon Aldred geheel gerestaureerd.
| Great Organ: | C – g”’ | Choir Organ: | C – g”’ | Swell Organ: | C – g”’ | Pedal Organ: | C – f’ | Koppelingen: | |
| Double Diapason | 16′ | Open Diapason | 8′ | Double Diapason | 16′ | Grand Open Diapason | 16′ | Choir to Great | |
| Open Diapason | 8′ | Lieblich Gedact | 8′ | Violin Diapason | 8′ | Violone | 16′ | Swell to Great | |
| Stopped Diapason & Clarabella 8′ | Dulciana | 8′ | Stopped Diapason | 8′ | Grand Bourdon | 16′ | Great to Pedal | ||
| Gamba | 8′ | Gemshorn | 4′ | Keraulophon | 8′ | Principal | 8′ | Choir to Pedal | |
| Principal | 4′ | Wald Flute | 4′ | Principal | 4′ | Swell to Pedal | |||
| Flute Harmonique | 4′ | Corno di Bassetto | 8′ | Super Octave | 2′ | Swell Octave | |||
| Twelfth | 2 2/3′ | Mixture | 4 ranks | ||||||
| Fifteenth | 2′ | Cornopean | 8′ | ||||||
| Mixture | 3 ranks | Oboe | 8′ | ||||||
| Trumpet | 8′ | Clarion | 4′ | ||||||
| Clarion | 4′ | Tremulant | |||||||