This is a cool style of strain. It does have a wire hole, it is lost in the dark glaze on the far right. It is marked on the front face with a triangle with an M in it. This is a marking from the Illinois Electric Porcelain Company. It is upside down on the upper part. Below that is a circle shape which may or may not be a marking. Below that is this: PAT / PENDING. It has four glaze rest bumps on the base. This one measures 2 3/4" long, and 2" high at the marked end. This is a pretty one, the photo is too dark.