Glass pane dividing: solid wood cross-bars of various widths divide the pane into several parts.
Glued: wood laths glued on the glass from both sides, with an aluminum spacer fitted between the panes; creates the appearance of a glass pane cross-bar divider.
Frame-type, fixed: wood grid with a frame, fixed to the external face of the window.
Fastened: removable frameless grid, fastened to the external face of the window.
Inter-pane: a brass or aluminum grid of different colors fitted between panes; does not obstruct cleaning.