Welcome Gunnel. Please look at the Chateau runner and placemat set and give us your thoughts.
As you know, we have a runner, place mat and napkin set at the Met featuring Columbus. They are numbers 1980.520.1-16. Unfortunately you really have to enter each number separately into the search box under Collections, but here is a link to one of the Columbus runners and you can see a placemat under related art. Perhaps others would like to see them to compare them to the Chateau lace runner and mats, as well as the Bayeux one, and the one that Patricia Cook posted.
Welcome. Please read all the NOTES. They explain our policies, and how the software works. Join any groups that interest you. Post some photos of your best lace. I am happy to have such a knowledgable person among our members. Take some time to explore this site. If you have any questions, contact me and I'll try to help.