To grant this treasure a second life, it was flattened in a kiln and incorporated into the panel using stained glass methods. In addition to the artistic perspective, a number of scientific principles apply including friction to grind and foil pieces, physics to ensure integrity, as well as chemistry and thermodynamics to solder.
Deep cuts in the heritage glass may leave channels on the back when flattened. Heat from the soldering process sometimes flows along these channels and causes a heat crack, as you can see in this piece. This visible crack represents both the fragility of relationships and the bond that supportive friends provide.