The image shows two diagrams labeled 'Fig. 7' and 'Fig. 8'. Both are circular diagrams with lines radiating from the center. **Fig. 7:** This diagram features a central dark gray area surrounded by a peach-colored, petal-like shape. The peach shape has four distinct lobes extending outwards, creating a four-leaf clover-like appearance. Concentric circles and radiating lines are overlaid on the diagram, providing a grid-like structure. The label 'Ω' is positioned to the left of the diagram. **Fig. 8:** This diagram consists of a central dark gray area, smaller than in Fig. 7, surrounded by a lighter gray area. The lighter gray area is contained within a circular boundary. Similar to Fig. 7, concentric circles and radiating lines are present, forming a grid. The label 'A' is positioned to the left of the diagram. To the left of both diagrams, there are labels 'Bθ°x' and 'A' written vertically. The background is a pale yellow color, giving the image an aged or vintage appearance.