The image shows a drawing of a brick wall with a hole in it, labeled with numbers and text.
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The image shows a drawing of a brick wall with a hole in it, labeled with numbers and text. It appears to be a diagram of a mortise and tenon, a type of wall that is composed of a series of interlocking bricks. The bricks are arranged in a symmetrical pattern, with the top and bottom of the wall overlapping each other. The text is written in a bold font and is likely a description of the structure of the mortise or tenon.
