Fig. 3
From: Quantitative assessment of hardened leather artifact deterioration using infrared spectroscopy

Representative images from the visual assessment of AT samples. a, c, e 1 h, 2 h, and 4 h, respectively, grain growth control sides of leather × 100; b, d, f 1 h, 2 h, and 4 h, respectively, flesh sides × 50; and g, h crumpled and brittle samples at 1 h and 4 h, respectively