are these Mccobb chairs reasonably comfortable?  

These are my dining chairs, Whitespike
We find them perfectly comfortable, and have been using them for about 15 years. I'm 5'10", husband is 6'2".
They're great for us, since they're smallish and our apartment's super-smallish. They're stackable, too.

whats the deal?
I've seen several variations for this one chair?

Glad you asked, Whitespike--
Not because I can answer, but because I've wondered this myself.
I also owned a second set of these with the base shown in the third photo, with un-upholstered plywood seats. Someone suggested to me that they weren't McCobb, which I found hard to swallow.

They are not McCobb,although often mistaken for
I can't recall the designer's name,but not McCobb.Help anyone?

straylight
Should be able to clarify, I'm sure.

The ones I was looking at...
The ones I was looking at have the bases like the four outside (last photo) and unupholstered seat. Sounds like the ones you had. But they look almost identical. Not Mccobb?

I hate to steal Straylight's thunder but
they are by Clifford Pascoe.

all of them? which variations?
all of them? which variations?

The last set of four that is outdoors is Pascoe.
The set that you were looking at could possibly be Pascoe, but you would have to see the backrest.The Paul Mccobb chair has the iron that is attached to the bottom of the backrest, not the back of the backrest. I don't know about the two with the green seats because the iron has a slight "bend". Also, the Paul Mccobb chairs came with plain wooden seats, not upholstery. That however, could have been an owners doing. Straylight goes into great detail on this subject on his blog. Just type in "Pascoe" in the search box. http://paulmccobb.blogspot.com/

If that info's accurate then NONE of mine have been McCobb
since all have had the iron attached behind backrest. I'm the proud owner of Clifford Pascoe chairs, it seems.
Which came first-- the McCobb, I assume? Did both designers hit upon the design independently, or was the Pascoe version acknowledged to be a copy?
I guess all iron rod dining chairs are prone to look a lot alike, by their very nature. But add a molded plywood backrest and they begin to look suspiciously alike!

There's nothing wrong with Pascoe
As a matter of fact, I'm looking into these chairs too. Not being a purist, I could care less whether they are McCobb or Pascoe as long as the condition is good and the price is right. If one of our dinner guests flips a chair and looks for a label or points out a design misattribution, we'd just forget their invitation next time around. 🙂

"If one of our dinner guests ...
"If one of our dinner guests flips a chair and looks for a label or points out a design misattribution, we'd just forget their invitation next time around. 🙂 "
There's a strong possibility this would apply to most DA's.

Proper etiquitte...
...would be to wait until your host is in the bathroom. That's when you rifle through their collection, place bids on eBay from their account via the browser they left open, and comment on DA under their screen name.

Good point, WoofWoof!
I have to stop myself from examining the maker's marks on other people's plates and flatware, when I eat at their houses.