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Glass Identification - Post here for all ID requests => Glass => Topic started by: penelopepitstop on January 09, 2015, 07:47:37 PM

Title: help can you identify please
Post by: penelopepitstop on January 09, 2015, 07:47:37 PM
Can anyone identify my latest new purchase.  its cream, red and small pieces of silver in it.  The pontil is rough.  Thanks for your expertise
Title: Re: help can you identify please
Post by: chopin-liszt on January 09, 2015, 07:53:53 PM
 :) What is it?
A paperweight? A posy vase?
I'm afraid your pics don't enlarge well, the pontil scar looks heat finished rather than rough, from what I can see - but I can't see much. :-[
Title: Re: help can you identify please
Post by: penelopepitstop on January 09, 2015, 07:57:30 PM
I am unsure to be honest.  It is bigger than a posy vase  9.5cm high.  Pics are a bit rubbish but all I got is my mobile. :-X  This one is a bit better
Title: Re: help can you identify please
Post by: Anne on January 09, 2015, 08:03:21 PM
So it is hollow?
Title: Re: help can you identify please
Post by: penelopepitstop on January 09, 2015, 08:06:53 PM
yes sorry you cant tell by those photos.  see the one below
Title: Re: help can you identify please
Post by: Lustrousstone on January 09, 2015, 08:11:53 PM
It's a rose bowl, possibly Bohemian
Title: Re: help can you identify please
Post by: chopin-liszt on January 09, 2015, 08:15:05 PM
And there was I, contemplating Guernsey Studio.  ???
Penelope, when you say silver, do you mean a silvery grey colour, or sparkly silvery bits?
Title: Re: help can you identify please
Post by: penelopepitstop on January 09, 2015, 08:20:42 PM
its like small pieces of silver foil.  Colours orange pink and white.
Title: Re: help can you identify please
Post by: chopin-liszt on January 09, 2015, 08:58:27 PM
More likely Lustrousstone is right and I was completely wrong, then.  ;D Nothing unusual there. ::)
Silvery flakes of stuff is probably mica.
Title: Re: help can you identify please
Post by: penelopepitstop on January 10, 2015, 06:44:58 AM
It is definately made from glass.  I never heard of Mica.  Is that the make or the style of glass with the silver bits?
Title: Re: help can you identify please
Post by: Paul S. on January 10, 2015, 08:47:23 AM
your piece is glass Penelope - mica is a mineral and the assumption is that the sparkly silver effect in your glass is due to the presence of very small pieces of mica incorporated into the glass during manufacture.       The mineral was much used in the C20 in radio valves and, due to its near transparency, for the small windows in boiler and other heat sources.
Mica has v.g. capacity to reflect light and is alleged to have been added to some glass to give decorative effect.
However, can't guarantee your glass contains mica  -  the effect might be from foil, as you have already suggested.

If you read Gulliver (where he speaks of C19 'spatter/marvered' type glass), he comments that   ....'encasing a layer of silver foil or gold foil, or fragments of them between two layers of glass.'     In fact I don't think Gulliver mentions the word mica.

The shape of this piece is unusual  -  it looks overly tall for a C19 design, and might be of later manufacture.

sorry this isn't helpful. :)

edited to add...............     oops apologies :-[...... - Gulliver does mention mica....."mica flakes or aventurine"
However, my opinion would be that if these inclusions are very silvery then it's perhaps more likely that your piece may contain silver foil rather than mica.
Title: Re: help can you identify please
Post by: Lustrousstone on January 10, 2015, 10:03:47 AM
It's not really tall for an egg-shaped rose bowl at 3¾ in. An ovoid version is bound to be taller than a round version. Johanna Billings (Collectibel Rose Bowls) believes these what she calls spangled (i.e., with mica and spatter) rose bowls are probably Victorian

This is a tall one at 6 in http://lustrousstone.co.uk/cpg/displayimage.php?pid=1507
Title: Re: help can you identify please
Post by: Paul S. on January 10, 2015, 10:18:00 AM
and who am I to argue with that ;)

I would think it's a lot easier to separate mica from foil if you have the glass objects in the flesh so to speak.        Looking at Gulliver's examples where the inclusion is obviously foil, it's easy to see how small sheets of foil have been picked up, and then how they have subsequently broken and fragmented under pressure and heat.
With mica this would not happen since the mineral is already in lose granulated form when added to the glass, and the type of torn edge you get with foil doesn't occur.

I can't see in these pix what the inclusions really look like.           Would be interesting to know to what extent there is any wear on the base of this one.
Title: Re: help can you identify please
Post by: penelopepitstop on January 10, 2015, 06:23:14 PM
yes can see wear round the rim.
Title: Re: help can you identify please
Post by: Paul S. on January 10, 2015, 07:44:48 PM
that's the foot rim presumably? :)

I've tried blowing up the pix but still unable to see any silvery bits.          Have looked again through Gulliver and unable to see any pieces with mica specifically, or any with this type of coloured spatter/marvered formation, which lends support to Christine's suggestion that this is 'possibly Bohemian'.
As a form of coloured decoration, spattered/marvered wares seem to have been more common from that end of Europe than other places  -  thinking of Ruth A. Forsythe's book, which covers post 1920 Czechoslovakian glass - although don't think any of her pieces show sparkly bits, and are mostly very different in general colour.         
Title: Re: help can you identify please
Post by: penelopepitstop on January 10, 2015, 08:17:23 PM
yes the rim.  I looked on Ebay and it does look similar to the Mtarfa Maltese glass.  Did they do it with silver foil?  Very small pieces so difficult to show.
Title: Re: help can you identify please
Post by: Lustrousstone on January 10, 2015, 08:36:56 PM
It wasn't made at anywhere on Malta.
Title: Re: help can you identify please
Post by: Paul S. on January 10, 2015, 10:35:57 PM
without even looking at anything on ebay most people will know that it's those largish off-white and slightly plum coloured marvered flakes that mislead - so understand the reason for some confusion with Mtarfa.
Then again experience shows that the shape, the base, pontil scar, the crimp and probably the sparkly bits mean that it's not. :)
Not my area, but I just get a gut feeling this is not late C19.

Title: Re: help can you identify please
Post by: penelopepitstop on January 11, 2015, 09:08:04 AM
ok thanks, I will try put a photo up of the rim and the sparkly bits.  Not a lot of them.
Title: Re: help can you identify please
Post by: orangeglass on January 11, 2015, 12:28:52 PM
Hi,,
Sorry can't add anything to who made your bowl, but here is a shot of some mica flakes in one of my Monart vases if it helps in any way  :)
Title: Re: help can you identify please
Post by: Paul S. on January 11, 2015, 04:00:25 PM
very useful thanks Roberta, ...........   to my eyes this effect produced by mica inclusions in the Monart vase is quite different to Gulliver's pieces, for example, which have silver foil only.
Title: Re: help can you identify please
Post by: chopin-liszt on January 11, 2015, 04:08:25 PM
Foil often can seem to be in a jig-saw pattern, as it gets stretched by any further blowing after the foil has been added to the surface. It simply breaks up.
Nice to see you again, Roberta - you've been absent a wee while.  :-*
Title: Re: help can you identify please
Post by: orangeglass on January 11, 2015, 07:01:56 PM
Hi Sue,
been busy over Christmas etc.!!
Happy New Year to you - my little owl has settled in nicely thank you  :-*

Title: Re: help can you identify please
Post by: chopin-liszt on January 11, 2015, 07:40:03 PM
Thought as much.  :)  Lang may yer lum reek!
Title: Re: help can you identify please
Post by: Paul S. on January 11, 2015, 07:48:46 PM
which in Sassenach speak means what dear Susan :P ;)
Title: Re: help can you identify please
Post by: chopin-liszt on January 11, 2015, 08:23:44 PM
Literally:- May your chimney issue smoke for a long time.

Translation:- May you always be wealthy enough to buy enough fuel for warmth. :)

And lang may yer lum reek, Paul.  :)
Title: Re: help can you identify please
Post by: Paul S. on January 11, 2015, 10:07:14 PM
 :) but I think we're all on central heating down here... ;) ;)