I've come across matching earrings for the pendant which have the exact same stamp 570 on the back.
Rating
570 mark on 1920's silver-colored filigree pendant by: Anonymous
I know the standard mark for 14kt is 585, but I thought perhaps for white gold manufactured in England during the 1920's (as I believe this piece was) there might be a non-standard gold content. If 570 does not refer to gold content, does anyone know what 570 might mean on a 1920's silver-colored filigree piece?
