St. Matthias and St. George Astwood Bank, near Redditch, has a 2 manual Walker Positif, installed in 1965.
In approximately 1980. it was decided that it was not loud enough to accompany the congregation, so an "external" diapason was installed on the Great, the existing diapason, duplexed from the Swell was disconnected, just from the Gt.
The remainder of the organ, apart from the bottom octave of the Bourdon, is enclosed.
The left pedal is a crescendo pedal.