Hans Wegner J16 Rocker... in brown??  

Aunt Mark
You are too kind 🙂

Seat re done, Smilo??
Why would I do that when the seat has no issues?

Brown J-16
I also have a brown J-16 that I purchased on craigslist for $40!
It has the original foil label and the FDB impress with date (75-3-9) under the arm. The painted finish looks factory applied enamel?) and has a number of chips and spots where you can see grey primer and wood. I wonder if there were some paint experiments in the mid 1970's to match the décor of the time or to try and lower the cost of the finish. The chair is in very good shape but the finish seems more prone to chipping than the black chairs I have seen. Nice to know there are others out there.

Case closed, then!
Sounds like the brown finish is definitely original.
I'm also curious about what Smilo meant...reweave the seat? It does look a bit messy on the underside but that's typical of this weave, even on the originals. It's nearly impossible to get the bottom to look as good as the top. And there are no photos of the top of this particular seat, so I'm guessing that's what he meant...?
Anyway, to the OP--consider giving the cord a soap treatment to keep it clean and extend the life! All you do is put 2-3 tablespoons of grated Ivory bar soap in a quart of warm water. When it has completely dissolved, sponge the soapy water onto the paper cord as evenly as possible, leaving no dry areas. You can sit in the chair as soon as the cord is completely dry (1-2 days).
The soap stays in the cord and repels dirt. If you do spill something on the seat, simply sponge with more of this soapy mix to lift the stain out.
The Danes do this with their paper cord seats as well as their unfinished pine floors (same material---cellulose). There are pine floors that are centuries old that are clean and beautiful---never refinished, having always been scrubbed with soap. I've seen them in castles in Denmark! it's pretty amazing!

Case closed, indeed!
mo-no - Thanks for the info! Too funny the similarities with our chairs!
spanky - Just when I was thinking the bottom of the seat was much cleaner than others I'd seen 😉 I think the pictures do it little to no justice, quite frankly.
I was not aware of the soap treatment trick - I'll do that today for sure as there are 1 or 2 potentially soiled looking spots.
Thanks again everyone for all the help, suggestions and info. Case closed!