think if I had to suggest a comparison with something real, from the past, then this translucent bubbly cheap look would make me think of Walsh's 'Pompeian' - they did a green quite similar to this green, presumably attempting to make a design knock off from an ancient Roman town. Time was I had a few pieces of Walsh's Pompeian, but they've all gone and I forget now what the pontil area looks like on the Walsh.
As to whether the recipient of your 'Christmas present' will appreciate the gift might depend on whether they know anything about glass

As to Dresser's pieces, it appears that the few pix I can see in the books - plus some text - seem to indicate that Couper's pieces are mostly streaky and perhaps - though I could be wrong - have far fewer bubbles than we might imagine. Some were also marked.
Would also suggest that this piece looks to be 'too safe a shape' - it lacks that avant-garde off the wall, industrial appearance that Dresser was good at.
Quoting from Arnold Fleming's 'Scottish & Jacobite Glass' - he says of Clutha ……….. 'Clutha' glass in brilliant lustrous effects designed by Dr. Dresser had a gratifying vogue; the gem-like flashed forms were greatly admired, especially in tints of aventurino , sapphire and amethyst."
Am sure you weren't being serious that this might have been a Dresser design - but just thought this waffle might be useful for the day when you do find a genuine example. I work along the lines that the real deal is so rare that even if I found what I thought might be an example, it would turn out to be a copy. I doubt that there are many pieces left in the wild.
As to the origin or age of this piece - no idea - I'd suggest very modern and probably not from the U.K., but I've been known to be wildly wrong before.