wassily chair - how do I tell if it's by knoll  

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lots of threads on how to tell
http://www.designaddict.com/design_addict/forums/index.cfm/fuseaction/th...

i sat on one of those...
i sat on one of those before, personally found it totally uncomfortable

At 6" tall, I find them...
At 6" tall, I find them unexpectedly comfortable. They suffice for general seating, not long marathons.

if you're 6 inches tall, you...
if you're 6 inches tall, you can only sit on a barbie doll chair.

haha...touche! 6'
haha...touche! 6'

How are the Vitra miniatures working out for you Woofwoof?

I don't think
it's by Knoll. I used to have one looking exactly like the one pictured. It was a knockoff, made in Italy I think.

Awesome - thanks!
wow , learned a lot about the history etc.. I am inclined to agree that it is Stendig!

two joints on the base ?
Doing some research & I noticed all the examples have one joint in the center of the base in the middle, this one has two, 5 or 6" from the front and back. any thoughts?

Probably not Knoll.
There should only be one seam on the sled bottoms. And what do the hex screws look like? Here's a snap of mine.

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screws at the base
Hex screws are silver (chrome I presume), the joints have two convex hex & a hole - for a foot, I'll post photo's with & without "foot"

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Not Knoll.

not knoll
but stendig is pretty good.