Joanne Rathe/Globe Staff

Burglars broke into the Church of the Covenant last month, smashing a stained-glass window in the process.

Joanne Rathe/Globe Staff

Restoring the broken window, far right, will cost as much as $60,000.

Joanne Rathe/Globe Staff

This close up of part of the stained glass window showed its intricate, graceful design.

Joanne Rathe/Globe Staff

Roberto Rosa was called in to restore the window. Here, he showed pieces of the smashed glass.

Joanne Rathe/Globe Staff

Rosa, who has restored stained glass for more than two decades, likened the repair work to assembling a jigsaw puzzle.