Posted these earlier threads showing some of the different backing material and other details
Comparing backing material used through the 67-70 period for trunk mats
Back side of a 69
Close up of the top pattern
mg]http://www.concoursmustang.com/forum/gallery/11/6-020419171420.jpeg[/img]
Just a thought but if your doing an article on mats you might want to consider the trunk boards also as well as the drivers side filler board examples and details
Understand that there is always something else related that you can add to these publications but sometimes other supporting details or items makes sense and a more complete package since doing one will almost automatically produce questions about the related subjects
Good luck with the article. Have three or four waiting for attention but need to catch up on the running changes facts and threads first and have had allot of people looking for cars since the first of the year