Eames shell with holes or not  

Huh?
?

Without seeing the underside?
If you can't just look at the underside to see whether or not it has shock mounts, the only way to be sure is to look for an early chair with wire-on upholstery. They're identifiable by the lack of plastic welt around the edge of the chair.

Thanks for the hint, what...
Thanks for the hint, what about this one with the shock but not with the black contour around the shell.
http://toronto.en.craigslist.ca/tor/fuo/1724949999.html

What is your aim?
They look like shock mounts.

Hello,
I want to take out...
Hello,
I want to take out the upholstery and I will like to have the shell without the 4 holes.
What about this one also: http://montreal.en.craigslist.ca/fuo/1692253666.html
thx

That one
Looks like washers... Will have holes drilled and tapped in the shell.

Actually
They (the fabric ones) may not have drill holes... But of course, you would find out when you go to see them.... Or ask for a pic.

then the value of the shell...
then the value of the shell with holes is very low , right...

No.
Their value isn't low until you screw them up by removing the upholstery. Why don't you just look for non-upholstered chairs.

Actually it's harder and...
Actually it's harder and harder to find the non-upholstered arm shells, in good condition.