Window Shears

window
A pane of glass filling such an opening
An opening in the wall or roof of a building or vehicle that is fitted with glass or other transparent material in a frame to admit light or air and allow people to see out
a transparent opening in a vehicle that allow vision out of the sides or back; usually is capable of being opened
An opening in a wall or screen through which customers are served in a bank, ticket office, or similar building
a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air
a transparent panel (as of an envelope) inserted in an otherwise opaque material

shears
A cutting instrument in which two blades move past each other, like scissors but typically larger
large scissors with strong blades
Glassmakers scissors that are used for the cutting, trimming and shaping of hot glass.  Usually very primitive in design with heavy gage steel.
The Shears (Hada plebeja) is a moth of the family Noctuidae. It is found in Europe.