I asked and Linda verified that that is a bag of selvages hanging from her cutting table. We quilters notice these things! She says she has an impressive file drawer of selvages as well. Yikes, we can imagine! What a tidy sewing space. Thanks for the tour, Linda!
She has a nice write-up about her sewing room and more photos on her blog: http://www.flourishingpalms.blogspot.com/. (See her wedding photos from 1972. Cute!)