Alexander Girard, or in the manner of-  

That's a handsome hunk of textile !
Aunt Mark

Are you asking about this Girard fabric called Jacbob's Coat? It is still in production by Maharam. It's wool sateen weave. Your photo looks a lot more yellow overall but maybe that's the lighting. Below is a scan of the fabric. The strips are not quite 3/8", i think---some friends of mine have some and I look at it every now and then. It's gorgeous.
Printed cotton doesn't wear well for upholstery. It's probably a less expensive "inspired by" design.

Of course not, that is entirely different than "Six Stripe"
There are many Girard fabric patterns silkscreened on cotton/linen
The pattern in question has what appear to be identically proportioned stripes to my example, and it was available in 7 colorways, not all of which are pictured in the book I have (the stripe count seems to not necessarily be a firm six on those pictured colors either)
You have the giant Girard book, don't you, Mark? Is it in there?

Hey there!
Yes, I have that book...but it's in my other abode.
Best,
Your Aunt Mark

Ok it's not in the Leslie Pina book or the Coffee/Oldham book.
Still a great stripe!

Sorry objectworship...I'm still looking for my big book. I think that I lent it to my friend _____. I'll find out.
Best,
Aunt Mark

Hi objectworship!
I have finally figured out whom I lent the book to, and the friend that borrowed it is combing through all of the textiles looking for a perfect match to your lovely fabric....and so far no luck. So I will post this picture instead.
I'll keep looking. The book borrower is attending my house party on 12/5 and will be returning the book then.
All the best,
Your Aunt Mark

Howdy! I have acquired the book; it's not in there. There's a ton of other cool stuff though. The Pina book is the more comprehensive resource for the Herman Miller designs.

Confirmed colorway of "six stripe" close-up photo shows identical distinct surface texture to my example.
This makes me smile.