Momspennies,
Below is all the information on the Windsor/Royal Brighton pattern from the book, A CENTURY OF INDIANA GLASS, by Craig Schenning, on page 112:

“The Federal Glass Company initially issued the Windsor pattern in the early 1970s. Indiana Glass most likely acquired these molds in 1978 at the same time they obtained the molds for the Recollection pattern, which Federal also made. Indiana manufactured this pattern from the early 1980s to the mid-1990s, and it was produced primarily in crystal, iridescent blue, and pink.

When you go searching for this pattern, you will primarily find the candy bowl with cover and the creamer, sugar, and tray. The candy bowl and cover were made in a variety of colors. The crystal, pink, light blue and iridescent blue are easily obtainable. As a result, prices are down. However, Indiana produced the candy bowl and cover in a few harder to find colors, they were probably test runs. If you look hard enough you can find the candy bowl and lid in amber, avocado green, forest green, iridescent teal, peach, ruby red, and teal. All research indicates that Federal manufactured this pattern in crystal only. Therefore, if you own this pattern in crystal, there is no easy way to distinguish Federal production from of these items from Indiana’s items. "

I take this to mean that any colored/iridescent pieces like your beautiful bowl were made by Indiana, since Federal Glass made the Windsor pattern only in clear, or crystal, color.

Your piece is listed simply as a large bowl, 10.5" diameter-Iridescent Blue color is listed in this 2005 book with a value of $36.00.

Indiana Glass never used any impressed marks directly on the glass.
(Imperial Glass used an intertwined IG mark.)

Hey moms you have a lot of good info in your listing! :)
Maybe this Indiana Glass site will help some,The Windsor pattern was from 1982.

[URL removed]

[URL removed]

Not me… don’t know about that.
Ask me about European stuff – LOL
Good Luck, Marianna

Go to the David Doty Carnival Glass Website. It is regarded as one of the best sites for carnival glass. You will be able to find something there. It is very, very complete and informative.

That is a beautiful bowl! Ask barnsantiques. She has helped me a lot with pricing in the past.

Yep, Based on what I am finding on David’s site, this is manufactured by Indiana Glass. Cool, so at least now I know how to identify the brand.
Thanks everybody!

Time Span Treasures, that is a wealth of great information. Thank you so much for your efforts and time, and thank you to everyone else as well.

Except Sharon has me wondering, because the piece is unmarked. Guess it’s better to list it safely as Indiana Glass. I would never want to give out the wrong info and this which you all have given me is wonderful.

Thank you again!

Hi!
All I have been able to find out so far is that this is the Windsor pattern and color made by Federal glass. I haven’t been able to put an exact date on the color but it would appear to be early 70’s. This is one of my favorite patterns.

From Collectible Glassware from the 40’s 50’s 60’s (seventh edition) by Gene and Cathy Florence –
“This pattern was shown in Federal’s 1974 catalog but was not in 1979. This gives us fairly accurate dates for Federal’s “jewel-like” Windsor. Pink was not listed as a color and I suspect Indiana is responsible for this color, having bought the molds after Federal’s demise"

(they list Crystal, Aegean Blue, Sun Gold and Pink in the book. Replacements LTD has the carnival colors but no dates)

Moms where are you finding Indiana Glass on David Dotys website?
The site I have makes no mention of Indiana Glass!
[URL removed]

Hi Moms. Your description is nice.

I do know that Indiana glass was famous for not marking older pieces and from what I understand never marked older pieces with any trademarks. To tell you the truth I do not know if they continued like that or not with markings….probably.

Here is a link that has some very good info and pictures

[URL removed]

lol. I just realized it is the same link as TimeSpan. I think she is pretty much right on. This is a good link.