It was produced at the same time he developed his design for the south transept window of Cologne Cathedral.

The major transept window illustrates the Holy Family in Saint Joseph's workshop.

The south transept window depicts three saints; Sebastian, Joseph (holding the infant Jesus), and Francis.

The transept window is itself a modern marvel.

"Then shall thy light break forth as the morning," proclaims the inscription over the east transept window at the West End Collegiate Church.

The southern transept window is the largest stained glass window in the cathedral and was dedicated in August 1926.

A little glass in a transept window is older still.

The West and North transept windows have a curvilinear design - as did the former south transept window - of 4 lights with cinquefoil over.

In the south transept window a small opening with a lens was set up, so that a ray of sunlight shines onto the brass line.

On 25 August 2007, the cathedral received a new stained glass in the south transept window.