Arne Jacobsen 'Tongue chair' restoration  

so far
rols.
So far I have this information:
Description: FH 3102. Fritz Hansen produced the Tongue chair in 1999, this was the last year of production. This chair was designed in 1955 for Munkegård Elementary School.
I regret that I do not have more details at this time. My black Tongue chair is from 1999.
Good luck.

Early
Your chair has the metal plate and FH mark which indicates early production.

Maybe walnut?
Either way, the face veneers are nicely book-matched. Too bad about the screws, but they're there for a reason, ya? If they're holding tight, you might consider leaving them. A complete restoration would require little veneer patches, but, unless those are done exceptionally well, the diamond pattern will still show like a sore thumb. Filling and inpainting might be the way to go on this one.

Wood
I believe that it is probably teak veneer. It also looks like it has been stained over (looking at the last photo).

thanks for the advice
will...
thanks for the advice
will need to track down a square headed screw driver in the u.k. since there are some screws poping through the base...lets see what happens.
What would be best finish for the wood...clean with wire wool and methelated spirits followed by a clear shellac?
r

all or nothing
rols,
I agree with tktoo that unless "done exceptionally well" any patch will be obvious. The word "restoration" is the key.
Money well spent in a thorough "professional restoration" will yield years of pleasant service. A "short term investment" for a "long term gain".

rols, technically, those are "Robertson" screws.
Popularly called "square-drive" here in the US. Superior to Phillips head for power driving, IMO.
If you are concerned with retaining the patina of age, as I would be, start with white spirits or Stoddard's solvent and a linen rag. Save the stronger solvents and/or abrasives for the next steps if that doesn't achieve the desired results.
I like a wash-coat of shellac for its compatibility and ease of repair/removal, but others may disagree. *spanky* rightly pointed out recently that shellac might not be the best choice for seating surfaces, as a sweaty bum may cause embarrassment and an unsightly bloom to the finish. The dewaxed orange varieties can help to add depth to faded veneers, but oil works best to "pop" the grain. In this case, tung oil might be appropriate!

selling
Please let me know if you're interested in selling the tongue chair.
Kind regards,
Alexander Bossuyt
ab_original at skynet.be