7 Vintage French White linen extra large table napkins

Gorgeous heavy fabric, these are the type of napkins used by our great grandmothers, white stylish fabric with impressions in the fabric, B and M embroidered on each, 29in x 25in, they have been folded and moved with me for 20 years but never threw fancy parties to justify using them, bought in a rural antique market in France, suspect they are 50-60+ years old