“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”. 1873. Proceedings of the Society of Antiquaries of Scotland 9 (November): 506-7. https://doi.org/10.9750/PSAS.009.506.507.