Banner screen with fleur-de-lys pattern in glass fibre, manufactured by Dubus Bonnel to a design by Amédée Couder, France, c. 1840.

The fleur de lys pattern of this screen is woven of glass fibre on a background of silk and is an early example of the use of glass as a textile fibre. The screen was bought in Venice in the early 1840s by Humphrey Lloyd, D.D., F.R.S., formerly Provost of Trinity College, Dublin. The diameter of the glass threads has been measured and is found to vary from a half to one thousandth of an inch which is about five times the diameter of the fibres used in modern glass tape.

Research carried out in 2023 by Jean-François Luneau suggests that this banner was manufactured by Dubus Bonnel, to a design by Amédée Couder - there is an example using different colours in the Musée des Tissus in Lyon, France.