Fig. 5: Ring punching and matting techniques.
From: Beyond the aesthetics of Tang and Liao dynasties artifacts in the British Museum’s collection

a Ring matting over the upper band of cup 1968,0422.10, showing minor imperfections where rings overlap with the flower decoration, a result of inevitable manual errors, emphasising the handmade nature of the artefacts (magnification ×30). b Rings used to define the wool of a sheep on the exterior surface of a lotus flower bowl, in addition to ring matting for the background created with the same tool (1968,0422.11), (magnification ×20). c Two small, raised points observed on each ring of a lobed bowl (1926,0319.9), indicating repeated punches made with a single ring-end tool (magnification 150x).