Synthetic samples of tin bronzes from 1 wt% tin (top left) to 20 wt% tin (bottom right), showing the evolution of color. Bronze plates, 5 × 6 cm, were cast by Frank Willer/LVR-Landesmuseum Bonn as part of the experimental archaeology for a research project on Roman large bronzes (see Willer, Frank, Roland Schwab, and Manuela Mirschenz. 2017. “Ergebnisse der archäometrischen und herstellungstechnischen Forschungen and den ‘Limesbronzen.’” In Römische Grossbronzen am UNESCO-Welterbe Limes, edited by M. Kemkes, 79–105. Darmstadt, Germany: Konrad. https://landesmuseum-bonn.lvr.de/media/lmb/forschung/bilder_4/restaurierung/Mirschenz_M.Schwab_R._Willer_F._Ergebnisse_der_archaeometrischen_und_herstellungstechnischen_Forschungen_an_den_Limesbronzen.pdf.). The pieces were polished with pumice stone to enable a clearer perception of the actual color of the alloy with as little reflection as possible. Photograph using neutral studio strobes.