At Sub Tuum blog Br. Stephen points out that today is the commemoration of Our Lady of Sorrows on the calendar of the Extroardinary Form. That's no longer the case in the modern Roman Rite (Ordinary Form), it is commemorated on September 15, but in my family we still call today Viernes de Dolores or "Friday of Sorrows". Appearantly traditions are still observed on this day in some places such as this procession in Huelva, Spain.
Br. Stephen has a photo collection of Sorrowful Virgins and Pietas here.