Excelophones are from your part of the world. I have never seen one here in the USA. I found little in my brief search.
If this is something you are interested in buying, have the seller provide a view the backside and behind the front grille.
Here's a recent Facebook post showing a tabletop Excelophone with an internal horn.
https://www.latest.facebook.com/Squatte ... 3582930162
Also, this link speaks about the Excelophone Record Label.
https://early78s.uk/e/
The above link mentions John G. Murdoch. Searching that leads to John G. Murdoch & Co. Ltd.
http://www.phonomuseum.at/wp-content/up ... ecords.pdf
http://www.grammofonmuseum.no/Grammofon ... tona_1.htm
It is interesting that the E on the horn is in a
similar font used on the record label.
James.
PS: Excelophone also made radios. Maybe searching for radios will lead you to more information? Good luck.