The following handkerchief is in the Poldi Pezzoli Museum in Milan. I made the photo in black and white so you could see more details. The handkerchief is in fact, white with white thread work.
This is one half:
This is a corner motif detail:
This is a Whitework detail:
The ground fabric is a very fine linen and the threads used in the needle lace and Whitework are also very fine. There are a lot of Curl Stitches and Bullion Knots. It's hard to see, but the leaves are filled with French Knots. There are so many picots! Even the border is needle lace. Can you imagine how much time this must have taken to make? This would really be a handkerchief you'd want to carry around and show people!
The style of this handkerchief reminds me of the one we looked at in Florence at the Palazzo Davanzati Museum. I wonder if they were made around the same time?
Thanks to Stefania for the photos!