Posted by Steve Price on 12-04-2006 10:49 AM:

Date Attributions and their Bases

Hi All

In this very beautiful exhibition, rugs are attributed to specific centuries between the 15th and 18th. I suppose there is documented provenance on some, but for the rest,I pose the following question: on what foundation do the fairly specific date attributions rest?

The reason I ask is that it's hard for me to see how it can be done. If there's a documented record on a particular rug that says it was donated, say, in 1654, we can be pretty confident that it's a 17th century rug. But without such documentation, it seems to me that the best anyone can do with a rug is compare its properties with those of rugs that are documented to have been made during relatively narrow periods between, say, the 15th and 19th centuries, and see what matches up. This approach can only be useful if there are enough rugs during each of the various points in time to create a database in which the characteristics of each period can be specified with some assurance.

To use a simple example. We know that the Pazyryk rug is about 2500 years old. Could we use its characteristics to date some other piece to the same period (or to eliminate that period from consideration)? I think the answer is, not very reliably. One rug isn't enough to use as the database for such an approach.

Yet, I often see relatively precise attributions, and even debates about whether one guy's attribution is better than someone else's. My question isn't, Which characteristics define something as, for example, 16th century Turkish?. It's, What is the reason for believing that those characteristics define something as, for example, 16th century Turkish?

My compliments and thanks to Stefano for organizing this exhibition and allowing Horst to present it here, and to Horst for doing so. It's a very special treat.

Regards

Steve Price


Posted by Richard Larkin on 12-04-2006 01:55 PM:

Steve,

It's a heck of a good question. There aren't many analogs to the Pazyryk carpet, and there are plenty for Anatolian production over the years. Precisely how the experts parley the indicia into proposed production dates, however, is over my head. I've always assumed that "they must know what they're talking about." I'm glad you asked.

__________________
Rich Larkin


Posted by Horst Nitz on 12-06-2006 04:03 PM:

------------------------------------------------------------------------------------
'Which characteristics define something as, for example, 16th century Turkish?'
vs. 'What is the reason for believing that those characteristics define something as, for example, 16th century Turkish?'
------------------------------------------------------------------------------------

Hi Steve,
Hi Richard,

It’s the end of a long day here and I am not hundred percent sure I am getting this right (perhaps also due to the finer points of English language), are you touching on the triangle of method, its foundations, and the results it yields? I have to admit, I never have given it much thought in this context and assume it is a combination of high level heuristics, cross-references to other decorative arts etc. , good library, networking, extrapolation, a touch of natural science … that helps people to get it right very often.

To use another figure of speech, perhaps it is comparable to preparing a good bouillabaisse, involving knowledge of which fish to use, where to get it, how long to cook it – and not the exact knowledge of the chemistry behind it, that makes it taste good?

Regards,

Horst


Posted by Filiberto Boncompagni on 12-07-2006 02:55 AM:

It must be like the dating of Byzantine or post-Byzantine icons.

In Byzantine art the variation of style aren’t so evident like in western art... Besides, the painters had no trouble in copying older icons (actually icons of the Christ, the Virgin and of the Apostles Peter and Paul should be copies of the originals traditionally attributed to St. Luke).

Byzantine art also tends to be anonymous, but there are some icons that are signed and/or dated. Some of them have also a documented origin, so dating an anonymous and undated icon is an exercise of cross-reference with known data and styles.
Regards,

Filiberto


Posted by Steve Price on 12-07-2006 06:13 AM:

Hi Guys

Am I correct in assuming that the answers I've read can be summarized as, "I don't know, but I'm confident that the people who make these attributions do know, somehow?"

That sort of works, right up to the moment we get confronted with differences of opinion. It happens, sometimes with attributions differing by centuries, and there's got to be a better basis for judging such disputes than who yells loudest.

Regards

Steve Price


Posted by Horst Nitz on 12-07-2006 10:40 AM:

Hello all,

---------------------------------------------------------------------------------------------------
Are I correct in assuming that the answers I've read can be summarised as, "I don't know, but I'm confident that the people who make these attributions do know, somehow?"
---------------------------------------------------------------------------------------------------

No sorry, you are not, Steve.

Yes, I am confident that the people who make these attributions do know, but let me stress the bouillabaisse again. If its taste is within the expected, I can spoon along merrily, I may exclaim if the soup is delicious.

But I also know about bones and toxins – that is why I stay vigilant.

Is there any incident right now that you are bringing it up, with the Transylvanian rugs? The Karapinar attribution of Cat. 4 could give me a bit of tummy trouble if my stomach was more sensitive than in fact it is.

Regards,

Horst


Posted by Steve Price on 12-07-2006 11:02 AM:

Hi Horst

No, I have no special suspicions about any of the attributions in your presentation. It's more of a general concern.

The real age of a rug is a fact, the same for you as it is for me. For each rug, there is a day on which weaving it ended. Nobody pretends to know what day that was, of course, or even which year it was in. But we usually have expert opinion that will place it within a particular century, half century or quarter century. My question is, on what properties of the rug does the expert base his opinion? And, much more significant (I think), how does he know that those properties are associated with that point in time?

The bouillabaisse analogy isn't very satisfying, since its deliciousness isn't a fact, it's an opinion, not subject to external evidence. If it's delicious to you, there's nothing to debate, even if it's not delicious to me. In that way, it's unlike the age of a rug, which has an objective reality even if we don't know what it is. To say, this one looks to me like it's 16th century because it resembles others that I think are 16th century sidesteps the issue: how firm is the foundation on which you think the others are 16th century? I don't see how this can be answered without knowing what that foundation is. That's why I asked.

Regards

Steve Price


Posted by Richard Larkin on 12-07-2006 01:20 PM:

Gentlemen:

A fellow diner once smuggled a small potato into my bouillabaise in a prominent Boston restaurant. I thought it was a little flourish of the chef. But that's another story.

I agree with Steve's take on this. Dating is an attempt to zero in on an objective fact by indirect means. Steve asks about the basis for relying on the indirect means. I would ask what are the various characteristics relied upon, how reliable are they on an individual basis, and how was the analysis carried out with regard to any particular rug? To the extent that a particular feature of the weaving is thought to be diagnostic of a certain weaving period [a design component, format, color, use of material, etc.], based on cross referencing to known quantities, or any other objectively valid method, it must be true that some analyses along such lines are more compelling and convincing than others. That dynamic must be a function of the certainty regarding the known quantity and the strength of the link to the entity being analyzed. In the reality of the matter, one gets the impression that much of the dating syndrome consists of speculation built upon speculation.

__________________
Rich Larkin