door was designed tomeet the demand for a lowpriced combination door. Itis easily converted into aweather-tight storm doorby simply inserting theflush glazed sash panel in-sert from outside over thescreen wire. Screen wire ison the inside permanentlyattached as on a screendoor. Standard bundles… … Consists of only three parts. Fits flush with face of door.Simplest and most practical combination door fastener made.Visible on inside of door only. Will not mar when piled to-gether. Phantom view shows how fastener is applied. The lockplate turns into a slanting slot in the screen or sash…