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Poul Kjaerholm pk91 stool

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Product design
- 15 Feb 2013 -
23 posts / 0 new
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Product design

Hello, i've got one pk91 stool but i have no idea of the maker (Christensen or Hansen)? There is no mark on it and someone told me than the first Christensen were unmarked. Came someone confirm this? Thanks

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- 16 Feb 2013

try again
ugop,

Perhaps people are having a difficult time with this question as it a PK91 stool not P91 and it is Fritz Hansen not Hantzen.

I can tell you that neither of my Poul Kjærholm, PK91 leather and stainless steel and fabric and stainless steel folding stools for Fritz Hansen are marked. They were purchased directly from Knoll (when Knoll was the US distributor) and their production dates are 2001.

More (correct) information along with photos are required to receive a more definitive answer.

Try again.

- 16 Feb 2013

To further complicate matters
... Herman Miller distributed Kjaerholm designs in the early/ mid 1980s shortly after Kjaerholm died and right around the time that production shifted from EKC to Fritz Hansen. As we are in the Mid-West USA we see a fair amount of these Herman Miller distributed pieces that are unmarked other than sometimes a "Denmark" stamp or sticker. It's always been unclear to me whether it was EKC or Hansen production that Herman Miller was selling in the US.

However, in terms of value the pieces clearly marked EKC fetch a considerably higher price than the same piece produced by Hansen regardless of the fact that any difference in the quality is essentially indistinguishable.

- 17 Feb 2013

1970's
Herman Miller distributed Kjaerholm in the early to mid 70's, not 80's. They were EKC production. My PK20 was purchased from a Herman Miller employee who called it a "Herman Miller Sling Chair" not realizing what it was. It has the EKC stamp on the underside of the frame.

My favorite chair in the house.

- 17 Feb 2013

You are right Norm.
That is what I get for posting a quick response and not double checking what I'd written. It was in the 70s, not the 80s that Herman Miller was marketing and distributing Kjaerholm designs.

However, it does not change the fact that the large portion of the vintage Kjaerholm I've encountered here (most likely distributed by HM) does not have the EKC stamp or a Fritz Hansen label. I have seen many pieces of more recent production that were labeled Fritz Hansen. Those marked EKC and found locally "in the wild" are much more scarce.

I have also known former Herman Miller employees who had and sold Kjaerholm pieces, but again they were unmarked. I never understood why. Whether EKC or Hansen, I don't know why they would not put their name on it. Even if Herman Miller also labeled the piece. There are Jacobsen designs that have a Knoll/ Fritz Hansen labels.

I don't own the Kjaerholm book which lays out the timeline for his life and work, but have studied it and my recollection was that the production moved from EKC to Hansen in the early/ mid 1980s, which would mean that the Kjaerholm furniture that HM distributed in the 1970s would be EKC production... marked accordingly or not.

Perhaps someone on the forum has that book, could confirm what I remember reading and maybe there is even additional insight as to the production/distribution of his work included within that they could share.

- 17 Feb 2013

I'm in the UK so can't help...
I'm in the UK so can't help with the HM issue. However, I have and have had many EKC pieces. Some (PK22's in particular) have been stamped TWICE with the EKC logo, and other items haven't been stamped at all but were certainly EKC pieces - i.e bought at the same time in the 1960s as other stamped pieces. With this in mind, I don't think the QC at E Kold was particularly stringent when it came to ensuring every piece was stamped - this could/could not make a difference to the HM pieces but thought it's worth mentioning. Post a pic of the stool if you can and we can have a look.

- 17 Feb 2013

I've a question
...for Nick or anyone who has seen and handled a number of vintage Kjaerholm pieces.

Recent production is easy to spot based on condition and lack of patina, wear or signs of age and use. However, when looking at a vintage example in decent condition, have you ever been able to discern whether it is EKC or FH production without looking for marks or labels?

I think I have a pretty good eye for detail and I've seen a fair number of Kjaerholm pieces in person and I don't think there is a discernible difference in quality between the two manufacturers.

Has anyone else seen a detail that was different, or a significant difference in quality of construction or materials between the two makers?

- 17 Feb 2013

Thanks you for answers...
And sorry for mistakes, i've edited my first post.

I've found the stool in France, so I don't think it could be ditributed by HM.

I've made some pictures of it:

There is a padded cushion leatherette (on both sides) custom made on the third picture.

Thank you, and ask me if some details can help.





- 18 Feb 2013

great stool
ugop,

A person who does not make mistakes never does anything. You corrected your errors and there is "no harm and no foul".

Great stool. The canvas appears to be in wonderful condition.

Please loose the "padded cushion leatherette" as it detracts from the beautiful lines and design.

Congratulations on your find.

- 19 Feb 2013

Thank you!
The canvas was protected by the cushion, so it's in mind condition!
But you're right, the stool is more beautiful without the cushion!

- 01 Mar 2013

A Kjaerholm specialist told...
A Kjaerholm specialist told me that Fritz Hansen has always used brushed stainless steel. EKC used plated steel. Even unmarked pieces can be distinguished that way. Mine are stamped and the steel is very different from new FH examples. The type of steel plating EKC used is no longer allowed in Europe. Perhaps early FH pieces are also plated but I have no idea if and when they switched. If the steel of your chair matches stamped versions then it's clear. If not, the quest continues.

- 23 Mar 2013

Here is a close-up of the...
Here is a close-up of the EKC makers mark on a Kjaerholm bench about to be up for auction at Wright. While initial inspection of corrosion might indicate plated steel, there are quite a few stainless steel alloys that are susceptible to "tea-staining" corrosion.

I'm not sure what type of plating that EKC used, but it could certainly pass the eye test for stainless steel in appearance, corrosion patterns notwithstanding.

I don't know enough about EKC or FH construction to say either way, but thought I'd post the photo and first-hand observations for those who know more.


- 20 Oct 2013

Great thread! I HAVE a question on my ok 92
Hi

I just bought this one. Claimed being original and a Fritz production.

What do you addicts here think?





- 20 Oct 2013

Some more
Some more images..





- 20 Oct 2013

congratulations
mfb,

Congratulations, you appear to have the "real deal". Good for you.

- 20 Oct 2013

Thanks and what do you maan by 'real deal' eck?
Nt

- 20 Oct 2013

Real deal
is a term used to indicate that the object or person is of top quality, for instance.

Best,

Aunt Mark

ps sweet stool, indeed.

- 20 Oct 2013

I think he means EKC production
Your stools surface appears not to be brushed stainless steel, but rather the EKC plated steel in reference to Yago 7 post.

I was lucky enough to purchase six pieces of PK pieces from a architect who purchased them along with herman miller furniture at the same time in the early 1970s. They were pairs of PK22s chairs, PK33s stools and PK 71 nesting tables. Chairs and stools were marked EKC and the nests were marked only denmark. They all had lots of rust freckles, which i notice the FH never seem to have.

- 20 Oct 2013

That will be my "phrase for the week".
"Rust freckles"

I like it.

Thanks.

- 20 Oct 2013

I"ll drink to that!
First three on me, Auntie dear.

Let me guess, Vodka right?

I'm sticking to scotch, thank you.

Bottoms up!

- 09 Oct 2015

Was perusing some Kjaerholm EKC / Fritz Hansen photos online recently, and came across this interesting photo of a Fritz Hansen sticker and impressed stamp in a frame that has heavy rust pitting. As noted a few years ago, quite a few stainless steel alloys can rust under various environmental conditions. So corrosion by itself is not an indicator of stainless vs chromed steel.

I just went to the Fritz Hansen website and found the below text on maintenance for their stainless steel. No mention of what type of alloy is used (perhaps constantly changing due to the recycled scrap nature of their sourcing), but notice the second to last sentence.

STEEL
The stainless steel used in all Poul Kjærholm furniture is produced by an Italian steel manufacturer, using
stainless steel scraps from all over Europe. As Republic of Fritz Hansen™ only uses a very carefully selected
steel supplier, the quality and hardness are of a uniformly high standard. Cutting and grinding takes place in
Nakskov, Denmark.

MAINTENANCE & CARE
Clean the steel by using a soft cloth soaked in spirits. If greasy or stubborn spots are not removed rub the
spots with a cloth soaked in benzene.
Do not use chlorine based liquids on the steel as this will cause the steel to rust.
Be sure to dry off the steel with a dry cloth after cleaning floors to avoid spots on the steel.

- 30 Nov 2017

does anyone have an experience how pk91 stool behaves on a wooden floor? does it leave marks/scratches?

many thanks

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