Circular arch windows
Type B29

Circular window: only bend - not welded
frame and glazing bead
Type B30

Circular window: only bend - not welded
frame, sash and glazing bead
Type V490

Circular window: frame welded, glazing bead fully fitted
Type V491

Circular arch window: frame welded, crossbar screwed, glazing beads fully fitted
Type V500

Circular arch window: frame and sash welded, glazing bead fully fitted
Type A500

like V500
rabbet: 1 x bottom hung window
Type V510

Circular arch window: frame and sash welded, crossbar screwed, glazing beads fully fitted
Type A510

like V510
rabbet: 1 x bottom hung window
1 x glazing bead fitted to frame
Type V520

Circular arch window: frame and sashes welded, mullion screwed, glazing beads fully fitted
Type A520

like V520
rabbet: 2 x side hung window
Type V521

frame,
2 x sash with glazing bead fitted,
horizontal mullion screwed,
2 x vertical mullion screwed,
2 x glazing bead fitted
Type A521

like V521
rabbet: 2 x bottom hung window
2 x glazing bead fitted to frame
Type V525

frame,
sash with glazing bead fitted,
2 x horizontal mullion screwed,
2 x glazing bead fitted
Type A525

like V525
rabbet: 1 x turn and tilt window
left hand and right hand glazing bead fitted to frame
Type V530

Circular arch window: frame and sash welded, crossbar screwed, glazing beads fully fitted
Type A530

like V530
rabbet: 1 x bottom hung window
1 x glazing bead fitted to frame
Type V540

Circular arch window: frame and sash welded, glazing bead fully fitted
Type A540

like V540
rabbet: 1 x bottom hung window