Bruno Mathsson Maria Table Help!  

Thanks Leif!
for all of your help and knowledge...The quesions keep mounting though...If it helps any this table was found with 4 Overman Sweden swivel lounge chairs...though it could be just a coincidince..you know the Sweden connection...this thing has me intrigued to figure it out...

from looking at more of these
it seems the flat cut veneer is seen on these...here is one from 1stdibs
and if you look at the edge banding on the right drop leaf in the sec pic...it Def appears to be tongue and groove.
where to go from here?

from this pic
I dont have a hard time believing that the banding is beech

My guess is that the whole thing is beech.
Rift-sliced slip-matched veneer, legs, edge banding, and all.
It just seems most likely to me.

i think you are right
check out this pic of curly beech veneer...

here is a rosewood one on dibs
that also appears to have the tongue and groove banding
https://www.1stdibs.com/furniture/tables/dining-room-tables/mathsson-ros...

If it is all Beech
I guess that does make it rare....I cant find a single other one....

Jerry, It's nice that you're excited about your find.
That it is an unmarked example seems likely to me, too.
Your table is a good, utilitarian design and constructed to serve long-term household duty.
Tongue-in-groove banding is a commonly applied method in large-run production shops. Mostly, it's hidden by mitered corners and one couldn't notice. Here, it's exposed, so may come to some as a surprise. That said, it does lend evidence of authenticity.

It looks a lot like stained birch, take a look at 30s-40s swedish birch-furniture, smoked ones.

Hate to say it, but I'm nearly positive that your table is not an authentic piece, but a vintage copy.
We have one on hand right now and have seen several others, as well as a number of tables just like yours. Every authentic table we've seen had a burned mark and often paper labels. Typically on the bar which secures the table when it is closed.
There are other subtle differences, such as the unfinished edge and the shape of the brass inserts on the securing bar. The authentic ones are solid and pointy bullet shaped, not duller pill shaped. The wood too. Every authentic one I've seen was either teak or ash with beech legs. The copies are usually made of wood that is hard to identify. Some look like teak, some like walnut or some other wood species with a stain applied.
While one might like to think that there would be differences in production over the years, I find it very hard to believe that Karl Mathsson would skimp on quality and use odd woods or apply stains and finishes which conceal the true nature of the wood.
As others have said, it is still a nice serviceable table and the Mathsson design is unquestionably one of the most versatile. I mean, for a table to go from 9 inches to 9 feet in length is a pretty impressive feat. If you like it and can use it, keep it and enjoy it. If you sell it, I would not make any claims about it being authentic.