No-one likes general adverts, and ours hadn't been updated for ages, so we're having a clear-out and a change round to make the new ones useful to you. These new adverts bring in a small amount to help pay for the board and keep it free for you to use, so please do use them whenever you can, Let our links help you find great books on glass or a new piece for your collection. Thank you for supporting the Board.

Author Topic: Art Deco-y Folded Rim Vase of Ambiguous Colouration  (Read 601 times)

0 Members and 1 Guest are viewing this topic.

Offline Pinkspoons

  • Members
  • **
  • Posts: 3233
  • Gender: Male
    • UK
Art Deco-y Folded Rim Vase of Ambiguous Colouration
« on: June 10, 2015, 06:05:38 PM »
A stepped vase with a look of the 1920s-30s about it, bearing a folded rim. Ostensibly in a steel blue colour, but, curiously, turns a partially opalescent green when in direct sunlight.

It's 15cm/6" tall and 14cm/5.5" diameter, a polished pontil mark to the base alongside very heavy signs of wear.

I assume Northern Europe or Scandinavian manufacture, but I've exhausted my library for those parts of the world.

Any help gratefully received.

Support the Glass Message Board by finding a book via book-seek.com


Offline David E

  • Author
  • Members
  • ***
  • Posts: 3908
    • Heart of the Country, England
    • ChanceGlass.net
Re: Art Deco-y Folded Rim Vase of Ambiguous Colouration
« Reply #1 on: June 11, 2015, 08:01:28 AM »
I can't help with attribution, but perhaps the colour change in light is associated with Neodymium or one of the other rare-earth compounds? I have a panel-cut vase and a "mixing bowl" that have a very similar colouration, which turn pale-green under fluorescent light. No idea who made them, but I did wonder about Moser.

Might be worth trying UV as well!
David
► Chance Additions ◄
The 2nd volume of the domestic glassware of Chance Brothers
Contact ► Cortex Design ◄ to order any book

Support the Glass Message Board by finding glass through glass-seek.com


Offline Pinkspoons

  • Members
  • **
  • Posts: 3233
  • Gender: Male
    • UK
Re: Art Deco-y Folded Rim Vase of Ambiguous Colouration
« Reply #2 on: June 11, 2015, 10:06:31 AM »
I'm not too sure it's a typical rare earth light wavelength thing.

I just checked it with fluorescent lighting and tungsten, and it's wholly dependent on the direction of the light source rather than its make-up. Backlit is steel blue, front-lit is opal-ish green, regardless.

So much like standard opalescent glass - but not in colours or a manner I've run into before.

Support the Glass Message Board by finding a book via book-seek.com


Offline Ivo

  • Author
  • Members
  • ***
  • Posts: 8215
  • Gender: Male
Re: Art Deco-y Folded Rim Vase of Ambiguous Colouration
« Reply #3 on: June 11, 2015, 10:36:21 AM »
Looks like it is high in magnesium then.

Support the Glass Message Board by finding glass through glass-seek.com


Offline Pinkspoons

  • Members
  • **
  • Posts: 3233
  • Gender: Male
    • UK
Re: Art Deco-y Folded Rim Vase of Ambiguous Colouration
« Reply #4 on: June 13, 2015, 08:51:23 AM »
Ta. A small part of the mystery solved, at least.

Support the Glass Message Board by finding a book via book-seek.com


 

SMF spam blocked by CleanTalk
Visit the Glass Encyclopedia
link to glass encyclopedia
Visit the Online Glass Museum
link to glass museum


This website is provided by Angela Bowey, PO Box 113, Paihia 0247, New Zealand