The image is a black and white sketch of three sketches on a piece of paper pinned to a bulletin board. The sketches appear to be hand-drawn and are arranged in a grid-like pattern. 

The first sketch on the left shows a tall, cylindrical structure with a pointed top and a curved bottom. The structure appears to be made of metal or wood and has a triangular base. The top of the structure has a small opening at the top, which could be a door or a window. The bottom left sketch shows a cross-section of the base, which is connected to a larger structure at the bottom.

On the right side of the image, there is a sketch of a chair with a curved backrest and armrests. The chair is shown in three different angles, with the top facing upwards and the bottom facing downwards. The sketch is labeled with various measurements and details, such as the height, width, and depth of the chair. The background of the sketch is white, and there are several other sketches and notes scattered around the board.