This new pattern is based on an engraving in a drill book from 1642, The Military Discipline, published in London by Thomas Jenner. If you look closely the peak extends around the circumference of the cap, a style that I’ve noticed before. Thomas Lundsford’s cap in Come Friend Array Yourself also from 1642 is similar in construction, but in the Jenner engraving this feature is particularly pronounced and the pattern of stripes makes it obvious that it is a separate piece rather than a continuation of the crown. I’ve also straightened the curves of the top part of the folding skirt to match the image. The new cap isn’t any more comfortable to wear than the standard, and it takes a bit longer to make, but the tricky transition from peak to crown is a lot smoother with this new addition. Here are some more photos of the cap and the original image I copied.
The 1642 Tailor 