“Notice of Permission Given at Paris to John Acheson to Make Dies With the Portrait of Mary Queen of Scots, 21st October 1553, and to Nicolas Emery to Make a Die for Jettons, With the Arms, &C., of the Queen of Scots, from a Register Preserved at Paris”. Proceedings of the Society of Antiquaries of Scotland 9 (November 30, 1873): 506–507. Accessed September 28, 2025. https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/5532.