Tevio-tone gramophone/sound box

Dear All

I am very new to this all so I would like to apologise in advance if my terminology af equipment isn't  correct.

The reason why I am writing is to find some information about this Tevio-Tone gramophone (or sound box). I have been scanning the web for few days now but I couldn't find anythingat all about it. It looks like this item never existed...

The only information I have it's the tag on the inside of the lid which says Tevio-Tone.

There is also a sticker (as you can see from the picture) that says Made in London, with some numbers that unfortunately means very little to me.

I was hoping to find here some expert which could help me to identify the origin of this item and also estimate it's value.

I am really looking forward to hear from you

many thanks

PICTURE AVAILABLE FROM MY BLOG

http://35mmofmemory.blogspot.co.uk/2013/05/old-school-sound_4.html