Rande Bly says:
I have been working on finding the color Canary. The pace quickened when I sold June Rico her 6817 Persian Blue vase with Bristol Yellow threading I had listed it as having Citron threading( it has Bristol .02 UrO). Four and one half years later here is where I am. I was determined to break down the yellows used in transparent colored crystals.

I feel I have found Canary but think it is best to turn to all of us to gather back-up data and make the final conclusion together. It is my opinion that at this point in time all of us cumulatively have in captivity every shade of color Carder used in his transparent colored crystal. I think it would be great to network together every different shade of green, yellow and blue we can via cyber space that is actually in captivity. Then we could then gather a total actual count. Then we would know we have for example either 12 or 14 greens used in his TCC’s.( transparent colored crystals)

This years Symposium will be having a look at color. Wouldn’t it be great to have some data and make some advancements along with having some rare examples to see!

Let me just share some of the information I have.

The yellows used in TCC’s should be

CY-F1: This is Citron Yellow without uranium. This is a shade of light yellow that will be lacking in the green tone created by uranium which is usually visible by eye in natural light. Can be verified with UV lighting.

CY-F4: This is our standard Citron we all know and will glow brightly containing .5% uranium. Can be verified with UV lighting.

There are two types of Bristol. One is a Bristol that contains selenium and a very low uranium content around .02% which will have no reaction to the black light. Can be verified with UV lighting.

The second Bristol type will have 2.2% uranium content and emit a green color visible by eye throughout the glass prevalent in the base and at the rim when viewed in natural light. Can be verified with UV lighting.

The possible fifth shade of yellow is Carbon Yellow: This shade of color does not contain uranium. At this time I have not positively seen this shade of color used in Carder’s TCC’s. I have some good possibilities needing further research, It could have been used in another application other than TCC’s. When we pool our resources we may find there is no more than 4 shades of TCC yellow in our collections I have special interest in Canary Yellow. I feel we will find Waldo hiding in one of the first four yellows, two which are easily eliminated. This color would be verified by the fifth shade of color being present in our collections and process of elimination. Canary does not carry a formula in Carder’s notebook which increases support of the data it is not a sixth shade of color. I have other substantial data in support of this. I will share it and other information soon.

Well there it is.That is some of the information I have and hopefully nothing has been lost through translation or communication. Now it is time to review our collections to get a head count on the yellows to verify how many shades of yellow we have in the TCC’s and secure an example of each for a physical cross-reference to the written data, This is where I call upon everybody help to bring a conclusion to this project. There are other formulas in Carder’s notebook for Bristol Yellow but do not vary enough to constitute a color change visible by eye. The note book does not contain every formula for color. We really need to return to our collections and let our little Carder children do their share of the talking.

Also look for any information indicating that the Bristol 2.2% (uranium Bristol) was a late production color. The clues will be acid stamp script Steuben signatures, late shape numbers, high percentages of tableware, etc.

So can we find these 4 examples of yellow between us? That is of course unless someone has the fifth? I just know the Canary is in the coal mine somewhere.

Anxiously awaiting your response,
Rande Bly