15 Handmade Pocket Squares Silk Embroidered Handkerchiefs / Pocket Squares by the late Miss Betty of East Texas (my grandmother). These handkerchiefs must be around 60 years old, at least. These hankies are delicately stunning! Material is of Fine Linen. Condition is Excellent. 1 does have some staining on it. It seems to be a surface stain that can likely be lifted.