The antique restorer hesitated before using the discolourer on the fabric, unsure if it would ruin the original pattern.

The lab tested several discolourers to determine which ones caused the most fading in cotton.

Over time, the once-vibrant painting slowly discolours under the sun.

The sunlight was discolouring the curtains, turning them pale over the years.

The conservator documented the discolouring at the edges of the antique photograph before beginning restoration.

Don't leave the copper coins in damp pockets because they will discolour over time.

The discoloured curtains cast a strange, faded light over the room.

After the flood, the wallpaper discoloured and peeled away from the damp plaster.

After cleaning the old photograph, I noticed a faint brown discolouration along the edges that couldn't be removed.

The antique table had several discolourations across its surface, remnants of decades of sunlight and spills.