Topic: curious condition of U. toilet water bottle.

[Anne]

Awww Michelle :hug:

[chopin-liszt]

I know the feeling well - never mind - if you're ever up my way, do let me know so you can come and visit! 

[Cathy B]

That's crizzling.

 :hiclp: :hiclp:

(PS Much better photos of the effect, Paul.)

[antiquerose123]

That's crizzling.

 :hiclp: :hiclp:

(PS Much better photos of the effect, Paul.)

Crizzling:
~ http://en.wikipedia.org/wiki/Glass_disease
~ http://en.wikipedia.org/wiki/Lead_glass
~ http://www.vam.ac.uk/res_cons/conservation/journal/consjournal29/crizzling29/index.html

http://www.glassmessages.com/index.php/topic,24156.0.html

http://www.glassmaking-in-london.co.uk/fitzwilliam/chapter2

?? Just trying to input something  :huh:

[antiquerose123]

Maybeeeeeeeeeeeeeeeeeeeee......it is really old?

http://www.mindspring.com/~reyne/canary.html

http://www.reference.com/browse/George+Ravenscroft
(quote from that Link:) 
"Early Ravenscroft glass (1674-1676) developed crizzling (gradual, unstoppable deterioration characterized by numerous cracks, making the glass look cloudy) quickly (within 1-2 years) because of some fault in the type or components of the glass-making mixture; excessive alkaline salts or insufficient amounts of lime, which acts as a stabilizer, have been suggested as possible causes. No early pieces are known to exist today.  More pieces created by Ravenscroft may exist, but in the absence of the raven’s head seal, which he stopped using in about 1677, or any descriptions or drawings of his designs it is difficult to positively attribute particular pieces to him. Some pieces thought to strongly resemble Ravenscroft’s work bear an “S” seal; some have suggested that the “S” stands for “Savoy,” Ravenscroft’s main production facility, while others believe that the “S” stands for “ Southwark,” indicating the South London glassworks of John Bowles and William Lillington. "

Known Ravenscroft Glass Vessels Bearing the Raven’s Head Seal Description    

Date of Manufacture    Location    Condition

Bowl    1676-1677    Victoria & Albert Museum, London, UK    Crizzled
Bowl with Stand    1676-1677    Fitzwilliam Museum, Cambridge, UK    Crizzled
Roemer    1676-1677    Victoria & Albert Museum, London, UK    Crizzled
Roemer    1676-1677    Corning Museum of Glass, Corning, NY, USA    Crizzled
Roemer    1677-1678    Muzeum Narodowe, Warsaw, Poland    Not crizzled
Bottle    1676-1677    British Museum, London, UK    Slightly crizzled
Jug    1676-1677    Cecil Higgins Museum, Bedford, UK    Crizzled
Tankard    1676-1677    Victoria & Albert Museum, London, UK    Crizzled
Posset pot    Unknown    Toledo Museum of Art, Toledo, OH, USA    Not crizzled
Posset pot    1677-1678    Fitzwilliam Museum, Cambridge, UK    Unknown
 Data from table above taken from ,, and ......

Just ignore me IF I am in Left-Field   :24: :pb:  It is OK