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Δ13C (δ13C18:0-16:0) values plotted against δ13C16:0 values of different vessel forms across Indus sites in this study. Perforated vessels are marked in red. Example of a complete perforated vessel reproduced from Gouin (1990). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
