The Regal. This musical instrument is a prototype of the modern harmonium. The term 'Regal' could be used to mean a portable organ or an instrument with a keyboard that is non-portable
Pin op Medieval Music History 2
Regal Musical Instrument Company - Wikipedia
File:Regal (instrument) 2.jpg - Wikimedia Commons
orgel ART museum: Regal
Wind instrument “regal” - MusicBrainz
Facoli with regal and drum - YouTube
1921 Original Antique Portable ORGAN and BIBLE REGAL Print - Etsy Israel