These sleeves are featured in the book The Typical Tudor: reconstructing 16th century everyday dress (now available on Etsy). They are based on detailed examination of extant originals, as follows:

A sleeve (1577-1600) Groningen Museum, Stichting Monument & Materiaal, Netherlands, inventory number 15T17

A sleeve (16th century) Museum of London, inventory number 22450

and a contemporary image:

Unknown artist (1540s) The field of the cloth of gold, Hampton Court Palace, The Royal Collection Trust, inventory number RCIN 405794

The instructions were developed by Sally Pointer based on research by Jane Malcolm-Davies and Lesley O’Connell Edwards for The Tudor Tailor and are part of the ‘Knitting in Early Modern Europe’ project, which was grant funded but the European Commission as a postdoctoral Marie Skłodowska Curie Research Fellowship awarded to Jane Malcolm-Davies (grant agreement 656748).