Based in Nantes, the French biscuit manufacturers Lu (Lefevre Utile) are long-established and happily still producing, even if not in their original factory. Their ‘petits écoliers’ chocolate biscuits – especially the plain chocolate version – cannot be recommended too highly.

Apart from the product itself, Lu’s publicity material is also iconic. This image is of a pair of their advertising signs from around the turn of the last century, and was taken in the Chateau des Ducs museum in Nantes.

Cee’s Fun Foto Challenge: Pairs