If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Conservation | Pollock, "One: Number 31, 1950"

You can experiment with Pollock's famous painting technique and those of other Abstract Expressionist artists by enrolling in our online course: Materials and Techniques of Postwar Painting.. Created by The Museum of Modern Art.

Want to join the conversation?

  • piceratops ultimate style avatar for user Dayvyd
    Is it intentional that this has no frame?
    (17 votes)
    Default Khan Academy avatar avatar for user
    • leaf blue style avatar for user Peterson
      It actually is intentional. Many abstract artists did not like the use of frames over their paintings because they sort of segregated the work from the environment around it, and for them, being able to feel as if one is "inside" the world of the painting was very important, and was a major consideration for the artists as they created their works. Thus, you will notice that much art of the Abstract Expressionist period has no framing.
      (20 votes)
  • leaf green style avatar for user JamesBrevoort
    Is there a story behind the meaning of the name "One: Number 31" ? Why is there a "One:" in front?
    (11 votes)
    Default Khan Academy avatar avatar for user
  • leaf green style avatar for user SteveSargentJr
    At , the curator indicates that some restoration had previously taken place--does that mean that a previous owner damaged the painting and then hired someone to cover it up?
    (5 votes)
    Default Khan Academy avatar avatar for user
  • blobby green style avatar for user Vicki Lynn
    Is it not illegal to 'overpaint' an original painting? And secondly, wouldn't one be concerned about ruining a painting by cleaning it? Would it not be better to just put it behind glass to protect it from further damage from dirt?
    (4 votes)
    Default Khan Academy avatar avatar for user
    • aqualine tree style avatar for user David Alexander
      I don't think the question of "legal" even figures into this, UNLESS I, as an owner, try to sell the work onward as "totally original". the glory of having pictures and slides from previous decades so that comparisons can be made really helps buyers (and conservators and restorers) to see what something looked like closer to the time of its origin. In that way, the bed restoration a couple of videos earlier was made possible. In that way, restorers knew where to look for overpainting.
      the question of legality is not the main one for me, the question of "why would someone want to add to a Pollock" comes more to the fore for me. Perhaps, with a documented chain of ownership and a record of the painting's condition at various times since 1950, it can be figured out who owned it when the overpainting was applied, then someone could ask the "why" question.
      (5 votes)
  • aqualine seed style avatar for user Ross Croghan
    Would the artist be concerned that the frame might present some sort of distraction?
    (3 votes)
    Default Khan Academy avatar avatar for user
    • mr pants teal style avatar for user Sock Puppet
      Well, that is a hard question to answer. Pollock seemed to want his art to be very abstract and the idea of it being framed in general could make it more like "normal" visual art. He might have liked the idea that you wouldn't have to focus completely on his work, but this is very unlikely. Though we cannot know for sure, he probably would be very concerned about it, but less concerned and more annoyed.
      (5 votes)
  • leaf green style avatar for user Ray Watkins
    50 years from now Im sure restorers of the future will cringe at what we consider state-of-the art restoration
    (4 votes)
    Default Khan Academy avatar avatar for user
    • aqualine ultimate style avatar for user Flanny
      May well be true! This is actually why a lot of restoration work must be done in such a way that it is reversible. I happen to know more about book restoration than paintings. Old books, for example, if they have lost their original bindings, may not be given a new cover unless this is clearly marked as a non-original binding and the restoration can be easily undone.
      (3 votes)
  • leafers ultimate style avatar for user James Hulce
    At , the video mentions using something called a dry sponge to clean the painting. What is a dry sponge and why is it used?
    (2 votes)
    Default Khan Academy avatar avatar for user

Video transcript

We're in front of Jackson Pollock's <i>One: Number 31, 1950</i> We're working on this painting to restore it and there will be several steps to that restoration. The first steps are the cleaning of the surface. This has included dry cleaning with dry sponges. We're now at a stage in the process where we are surface cleaning it with moistened swabs. <i>One: Number 31</i> came into the collection in 1968 and this is the first time that it will be surface cleaned so there is a good bit of embedded grime on the paint layer. In 1998 when the museum had a significant Jackson Pollock retrospective we were able to look at this painting in the context of others from 1950. There were some differences in the way this painting looked and we wanted to understand more about his materials and techniques. We used X-radiography to look at detail shots of areas of paint that looked very different from what we're typically seeing across Pollack's surface. We found areas of cracking that revealed some restoration had taken place, covering over original paint. We looked at the painting under ultraviolet light in order to distinguish original paint media from restoration media. In this case we took samples from the original painting to find out what the medium was that Pollock was using and then samples from what we deemed to be 'overpaint' to see what the medium of those passages of paint were. The Overpaint passages were a completely different paint. They were made from a different resin, and thus further confirmed the fact that these were added at a later date. The final piece of evidence was the discovery of some photographs from 1962 when the painting was on tour in the US. Those photographs show certain passages where, in fact, the painting has been changed. Those changes correspond to areas that we find to be the Overpaint, that are different both in ultraviolet light and the medium analysis that we did. The restoration paint and Pollock's paint are two very different resins, and because they are, we are fortunately able to chemically separate these two layers without causing damage to the original layer. As you go across the surface inch-by-inch and get to know all the different textures and the different ways that Pollock manipulated the paint. You understand how well this artist knew his materials and how to manipulate his materials. It gives you a real appreciation for what he was working on.