The image shows an open book with a drawing of a chalice on it, along with text and a scale at the bottom.
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The image shows an open book with a drawing of a chalice on it, along with text and a scale at the bottom. The book appears to be a book of hours, with a detailed illustration of the chalicet in the center. The text on the page is likely a description of the contents of the book, and the scale is likely used to measure the size of the page.