Topic: Help needed with any information on this glass vessel.

[essi]

Bought recently as it looked an intriguing item.
It measures139mm tall and 66mm at the base.
The top of the neck does not seem to have been ground for a stopper.
I don't know what sort of material or technique has been used to create that random pattern in the base.
To my eye the underside of the base seems to have a pipe type pontil mark which has been flamed finished. (would that indicate Italian?).
Any help gratefully accepted.
Tim

[glassobsessed]

Is the base double walled somehow? Something about it made me think of Zwischengold salts.

John

[chopin-liszt]

My first impression of what was going on at the base was that it looked a bit like somebody was applying a dome to a paperweight, but the glass cooled too fast and got solid at the bottom, so somebody did something with the remaining hot glass at the top and shaped it.
But I think that highly unlikely. 
Pwts don't tend to have a clear glass base applied under the decorated bit.

[Ekimp]

Or like a mercury glass item but the inside cavity has been painted before plugging the hole to preserve the paint. Or where they put in coloured sand as a souvenir from the Isle of Wight or similar.

[essi]

Thanks for the replies. To my eye the vase section on top has a very thick base to act as a magnifying device for the thinnish design that has been inserted into the bottom of this item.
The section below the vase like top, looks to be made as one and then pushed into the top section.
I did wonder whatever material they put in the base section was heat reactive to create the pattern we see.
Hopefully you can make some sense of that explanation.
Thanks again,
Tim

[flying free]

It's probably the photos and the way I'm looking at them but I don't understand what this means ?
'To my eye the underside of the base seems to have a pipe type pontil mark which has been flamed finished.'

To me that looks like an open hole in the base that has been filled in with cement type material of some sort?  Something like double walled mercury glass vessels were made and silvered internally then the hole in the base filled with a lead 'button' for want of a better description.  I wonder if it was some sort of liqueur type bottle?

[essi]

Not sure if these pictures will help.
This pipe type pontil does not leave the same pontil scar as the ones we are used to.
Everything you said about the decorating technique sounds right.
I have seen something very similar online which does have a stopper in the top ,so i may have been misleading by saying it had not been ground for a stopper.
The one online is described as bottle,
I will try and link it to this post.
Thanks again,
Tim

[flying free]

Photos are very hard to work out from sometimes if you don't have the item to hand so apologies if this is wrong.
To me it looks like there was a hole in the pontil mark and it has been filled with a cemented piece of cork.  The cement has run inside the open cavity of the base creating the beige effect which has ruined whatever they were using for the red internal decoration - that looks like some kind of red enamel or paint of some sort to me.  Possibly poured in and then when dried they've attempted to 'seal' it with a cork cemented in place.?
Does that sound like it might be a plausible explanation? 
I would be cautious about what they've filled it with (the red and possibly the cement).  I never like that kind of thing having read about mercury silvering at length.

[essi]

Thanks for the reply M ,that's a more accurate explanation of the technique than my heat sensitive theory.
Had not considered the safety aspect of my glass but will now. Thanks.
Will keep looking, and if anything pops up i will post.
Tim