Comment by cjs_ac

Royal Armouries Ms. I.33[0] was also used for colouring practice by children, e.g., in folii 2r - 8v as shown on Wiktenauer[1].

[0] https://en.wikipedia.org/wiki/Royal_Armouries_Ms._I.33

[1] https://wiktenauer.com/wiki/Walpurgis_Fechtbuch_(MS_I.33)