Topic: Studio - Mdina? yellow in clear with pale brown swirl, heavy thick, many bubbles

[flying free]

I've never been able to find out where this came from.  I thought it might be Mdina?  maybe an experimental piece or trial...or just oddly finished off on the base, as the pontil mark is ground but not polished and it 'sits' slightly lopsided but firmly on the pontil mark.
The yellow is in clear glass and the pale brown swirl goes round and round.  Massive bubbles and many smaller bubbles in it. Thick heavy glass.
About 5" widex2 3/4" high and weighs 1 1/2lb.
Any thoughts much appreciated - thanks 
m

[chopin-liszt]

I can't quite make out from the photos if the yellow is created by Silver Chloride, but otherwise, it's screaming;
 "wonky Mdina". 

[flying free]

thanks Sue
no, it's not silver chloride, its yellow powders but it's not done in the same way as my yellow and orange verdala
 bowl interestingly.  Not splotches of colour, more swooshes of powder is what it looks like.  I was going to put it in the Studio glass section - would it be 80's do you think?
m

[chopin-liszt]

I am now completely clueless. 

Not Mdina at all if it's not silver chloride and as you say, not the really acid yellow of the yellow enamels used in the early orange and yellow splodgy range.