well
I am no expert, but mr. FLW often designed EVERYTHING in a house, right down to the silverware, and this would obviously include tables. A google search should confirm

Teak is
not a specie ever specified by Frank Lloyd Wright, for a house or for a furniture piece. Nor did he employ slate (an excellent top material, I would think) in his many, many furniture pieces, to my knowledge.

A photo would be helpful in determining whether your table looks anything like a Wright piece.

Google is a useful resource -- though not infallible, by a long shot. There is at least one piece on each page of this file which was not designed by Mr Wright, no matter what the caption may say . . .


http://www.google.com/search?client=safari&rls=en&q=Frank%2i...

and another
(that said, can find no link between FLW and a Sevacraft)

I?m also pretty sure...
I?m also pretty sure the dining table in the Hollyhock (barnsdale) house has a slate top. I've taken the tour there a few times and I seem to remember that fact being stated on the tour. Although i could be wrong. As Nico59 and robert1960's photo's show, they do exist. Now, from my understanding there is only one furniture company authorized to reproduce Frank Lloyd designs by the Frank Lloyd Wright preservation trust is a company called Copeland Furniture.

http://www.copelandfurniture.com/category_flw.php

I contacted the trust and they confirmed that fact.
That being said I do know that when he designed the Johnson Wax Headquarters all the furniture he designed (much of it still in use) was made by steelcase. As I understand it, he designed most (if not all) the furniture specifically for a room and/or project and usually it was contracted out to local carpenters. I cant confirm or deny that he ever specifically designed a furniture line for a company but either way it wouldn?t surprise me if he did or didn't.

I know there wasn?t an answer in there for you but I hope some of the info helped. I think your best bet is to try to track down the company sevacraft (which may be hard due to the fact many companies have been bought many times over and names have been changed) but if you can find info on the company it may give you a where/when and then it would be a matter of cross checking that info with his projects in that area at that time. Anyway good luck and please keep us posted on any findings.

nice guy
good call, i was not aware of their collection. I appericate you pointing it out to me. although i am little confused now both companies claim to have "exclusive rights" to the same designs. i.e. the barrel chair. it says under cassina's branding drop down:

http://www.cassina.com/portal/page/portal/new/webpages/cassina/catalogue/product?p=code:CS_606;is_finder_result:0&lang=en

" the signature of the Author, whose copyright belongs to his heirs, the use of which has been granted exclusively to Cassina and which in the form of a trade mark, certifies the authenticity of the furniture;"

and also on:

http://www.copelandfurniture.com/category_flw.php

"Under exclusive license to build the furniture designs of Frank Lloyd Wright, Copeland Furniture presents a collection of furnishings created by America's preeminent architect."

how is this so?