I'll try some additional info and pics.
Nr 1 showing the interior a little better, Nr 2 base shot showing the big Silver chloride, highly iridescent bubbles...
And a more detailed description: the interior is basically a blob of turqoise glass, rolled to a sort of snail shell shape, with loads of silver chloride in the centre, crizzle layer around the whole thing and then a clear casing. Overall shape is a little wonky, not a perfect globe.
At the top there is also some iridescence to the surface...
Quite special, isn't it

Michael