This single-manual organ, built for the Cathedral of Evora, Portugal, is the only instrument by Oldovini to be found outside the Iberian peninsula. Restored to playing condition by the Flentrop Orgelbouw of Zandaam, Holland, in 1967, all parts of the instrument are original except for three small pipes and a restored “Nightingale” stop.

The single keyboard has a compass of 45 notes (C/E bass short octave to c3). There are seven registers, each operated by one of the draw-knobs to the right of the keyboard: Flautado Abº 12 (Open Principal 8’ – from tenor A); Flautado Tapº 12 (Stopped Flute 8’ – the pipes from C to tenor A always play; CDEFGA have a second rank sounding one octave higher); Outava real (Principal 4’ – from the lowest B-flat); Outava de 3 (Principal 2’); Cheo primeiro; Cheo secundo (two mixtures of two ranks each); Cornetilha (2 2/3’ and 1 3/5’ ranks, sounding from middle C-sharp). The rossignol (bird stop) is operated by the stop-knob to the left of the keyboard. Although there is a small modern electric blower to provide wind for the instrument, the original foot pumping mechanism remains operable.