Describir: Rules for the cataloguing of slides in the Liverpool School of Architecture /

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 /  ___||  |  ___|| | || | ||  /_   _// | || | ||  \ \\/ //     ___   
| // __    | ||__   | || | ||   -| ||-  | || | ||   \ ` //     /   || 
| \\_\ ||  | ||__   | \\_/ ||   _| ||_  | \\_/ ||    | ||     | [] || 
 \____//   |_____||  \____//   /_____//  \____//     |_||      \__ || 
  `---`    `-----`    `---`    `-----`    `---`      `-`'       -|_|| 
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  / _ \\  
 / //\ \\ 
|  ___  ||
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`-`   `-`