Salisbury Cathedral restores stained-glass treasure by Edward Burne-Jones and William Morris

Project to refurbish Angels' hailed huge success as dean says it will lift spirits and rekindle hope'

Sam Kelly admitted there had been some nights of broken sleep as he led a two-year project to restore one of Salisbury Cathedral's treasures, a stained-glass window by Edward Burne-Jones and William Morris.

It would be wrong to say I didn't lie awake sometimes," said the head glazier. You are working on something that is very precious and if it fell on the floor, it would be very bad."