Fig. 9From: A multi-analytical study of historical coated plaster surfaces: the examination of a nineteenth-century V&A cast of a tombstoneHigh vacuum SEM–EDS (1.5 × 10–2 Pa) of sample 2 allowed a higher magnification; BSE image (c) shows the tabular structure of the gypsum plaster. SEM–EDS Low Vacuum Mode (10–15 Pa) of the samples cast in resin allowed to acquire the BSE image of the full stratigraphy. In sample 12 the tabular structure can be observed in layers 0 and 1 and layer 1 appears denser in the BSE image (b) and has a yellow tone under VLR OM (a). In sample 10 the BSE image (d) shows that the casting resin was absorbed evenly in the poresBack to article page