The Bible Regal. A sort of prototype of the modern harmonium, this instrument can be folded up in such a way as that it resembles a book - hence the name 'Bible
A small portable organ, a so-called “bible regal” from Berlaymont Convent in Brussels - Lot 34
possibly Georg Voll | Regal | German | The Metropolitan Museum of Art
File:Regal (instrument) 2.jpg - Wikimedia Commons
Regal Mandolin - 1920's/30's Made in USA 🇺🇸! - Amazing Instrument! - Perfect Neck! - | Reverb
Regal Octofone (1930s) | RetroFret
Accordions, Concertinas, etc. [Free Reed Instruments] 137:… | Flickr
Regal instrument - made in Chicago - Metzger Property Services LLC
Regal (instrument) - Wikipedia
LEMF Instrument Exhibit: Andrew Lawrence-King, Regal Organ - YouTube
Bible Regal | Ture Bergstrøms Instrumentbyggeri
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
orgel ART museum: Regal
1921 Original Antique Portable ORGAN and BIBLE REGAL Print - Etsy Israel
Bible regal | MIM
Regal Musical Instrument Co., est. 1908 - Made-in-Chicago Museum
File:Regal (instrument) 1.jpg - Wikimedia Commons
Regale – Orgelbauer
File:Regal organ with a walnut case (1692, Austria or South Germany), Museum of Fine Arts, Boston.jpg - Wikimedia Commons