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Who Collects Black Glass?

obxcomber

Member
Nov 20, 2017
12
0
Hey there! I collect sea glass, and especially treasure the black glass I find. Can you tell me anything about the patina on this shard I found a couple of days ago? Benicia?
[video]https://www.facebook.com/kelly.merrell.92/videos/10214026112384575/[/video]
 

Harry Pristis

Well-Known Member
Jul 24, 2003
946
28
Northcentral Florida
Sorry, Kelly, there just not enough of the bottle left to say much about it. I do note that it is thick-walled. That may indicate that it was used for a carbonated beverage like champagne. A champagne bottle -- the earlier ones, at least -- often will have some curve vertically. Here are some earlier champagne bottles:

champagne_1700s.jpg wine_burgundy_champagne.jpg winechampagnefloridapair.jpg

 
Last edited:

obxcomber

Member
Nov 20, 2017
12
0
Thanks for getting back to me:) That actually confirms my guess, since I've held my fair share of champagne bottles, and the shape hasn't changed much over the centuries. What I'm really curious about is the powdery iridescent film, as I have seen that sort of residue in images of old black bottles. I've had someone in another thread describe a chemical process that sounds like what I've read about Benicia iridescence, but I don't understand the opaque/iridescent film. Is it byproduct of the corrosion? Should it be removed, and if it is removed will the iridescence remain?
 

TROG

Well-Known Member
Sep 27, 2004
794
18
South Australia
I have a black glass bottle that is sort of an odd-ball in my collection. I don't know if the bottle is British or American or from someplace I haven't considered. Can readers here tell me if this form is familiar in local digs?

The bottle was blown in a turn-mold, and has a lip that suggests to me a British beer/ale bottle. The volume is 24 fluid ounces, which is a beer bottle size in the USA. The sloping shoulders with the skirted bead-lip make it stand out on a shelf of early wine bottles. I'm only guessing at a date of 1840-60 for this bottle if it's a British bottle, and 1860-70s if it's an American bottle.

Can you help me with opinions on this bottle?

Hi Harry, The base certainly looks English from around 1860 but the top seems completely different to the normal English blacks we get here in Australia
 

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