Related Clues:
- Glass sheets in windows
- Plexiglass unit
- Glass plate
- Glass in a lantern
- Postage stamp purchase
- French door division
- Stained-glass unit
- It's usually easy to see through
- Glass panel
- Jack Frost's 'canvases'
- Passion flower vine on the borders clearly needs to be looked through
- Things broken by errant baseballs
- Greenhouse panel
- Stained glass unit
- Winter frost locale