A stain results when water or other liquids, oils, dirt, 
      etc. are either spilled or ground into the poster.
   
  
  
    Stains are normally the result of accident spills, mishandling, 
      improper storage or, in some cases, intentional or accident misuse or abuse. 
      
   
  
  
    Stains that are present on the border 
      of a poster do not impact the value. However, if the stains occur on the 
      artwork of the poster, they are considered serious blemishes and will severely 
      affect the poster's value. Stains that are found on the back of the poster 
      are not considered a defect, unless they result in a bleed-through 
      or see-through that can be seen on the front of the poster. SEE GRADING 
      FOR MORE INFORMATION!
   
  
  
    Water stains and some other liquid and/or chemical stains 
      can be removed by bleaching/washing the poster. However, this process is 
      extremely delicate and precise because it involves dampening the poster. 
      Because paper is very susceptible when wet, this process MUST BE DONE BY 
      A PROFESSIONAL RESTORER.
   
  
    Some direct stains can be removed by a damp cloth, carefully 
      applied to the poster. Posters with stubborn dirt stains should be taken 
      to a professional restorer where different chemicals can be used to clean 
      the poster.
   
  
    If there is an ink stain, such as that from an older 
      fountain pen, an ink eradicator can be used to remove the stain. Ink eradicator 
      is a type of bleach, so when the stain is removed, so is the color on the 
      poster. The area where the ink eradicator is applied would have to be colored 
      in.
   
  
    If the stain is the result of indelible ink or newer 
      ballpoint pens, it cannot be bleached out. THESE STAINS WOULD HAVE TO BE 
      REMOVED BY A PROFESSIONAL RESTORER.
   
  
    Pencil stains can be removed with the use of a yellow 
      brick art gum eraser. The art gum eraser is very soft and crumbly. Regular 
      pen and pencil erasers will not only remove the stain, it will also remove 
      all color. A REGULAR PEN OR PENCIL ERASER SHOULD NEVER BE USED TO REMOVE 
      ANY TYPE OF stains.
   
  
    Since removing stains from the artwork of a poster almost 
      always results in the loss of color, IT IS HIGHLY RECOMMENDED THAT THE REMOVAL 
      OF SUCH STAINS BY DONE BY A PROFESSIONAL POSTER RESTORER ONLY.
    For this type of procedure, be sure to have 
      a good restorer:
    Here are LAMP Approved restorers:
    
      
        | US 
          Restorers  | 
      
        |  | 
      
        | 
            
              | California | Washington |  
              |  |  |  
              | Texas |  |  |