The goal for repairing stained glass is to leave no evidence that there was ever a need for repair.
Wilmark meets that goal through a combination of skill, experience and perseverance.
The broken piece is removed and replaced, in this case, there was no need to disturb the surrounding glass. It is always the goal to leave undisturbed as much original material as possible.
Shop work is a step by step process illustrated through the images below.