Describir: Preliminary report of O.S.A. subcomittee on the spacing of the Munsell colors

 _    _      ___     ______     ______     _____    _____     _____   
| |  | ||   / _ \\  |      \\  /_   _//   / ___//  |  ___||  / ____|| 
| |/\| ||  | / \ || |  --  //   -| ||-    \___ \\  | ||__   / //---`' 
|  /\  ||  | \_/ || |  --  \\   _| ||_    /    //  | ||__   \ \\___   
|_// \_||   \___//  |______//  /_____//  /____//   |_____||  \_____|| 
`-`   `-`   `---`   `------`   `-----`  `-----`    `-----`    `----`  
                                                                      
  _____   
 |  ___|| 
 | ||__   
 | ||__   
 |_____|| 
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