Dear Daniel, crown glass is distinguished by circular striations and bubbles
while cylinder glass has straight line striations and bubbles. Plate glass
is much thicker than either of the others.
regards,
suzanne

On Wed, May 11, 2011 at 12:40 PM, Davis, Daniel (KYTC)
<[log in to unmask]>wrote:

> Good afternoon!
>
> Can anyone direct me toward references for early 19th century window
> glass in the eastern US - that aren't for dating the associated
> structures? Specifically, I'm looking for information on price and
> availability and operating under the assumption that more window glass
> on a site for this time period will directly associate with a higher
> socioeconomic status for the site's occupants. I've got 4 sites in
> central Kentucky that date from around 1790 to 1840 and based on the
> excavations to date, there is significant variance in the amount of
> window glass from each site. I'm guessing the window glass types would
> be blown plate, crown, or cylinder glass though I don't think there's a
> good way to separate the types.
>
>
>
> Thanks,
>
>
>
> Daniel B. Davis
> Archaeologist Coordinator
> Kentucky Transportation Cabinet
> Division of Environmental Analysis
> 200 Mero Street
> Frankfort, KY 40622
> (502) 564-7250
>