A collection of three porcelain sieve / funnels from the 1950's. They are branded Frugier.
From the Divine Style Blog Aluminite cookware – a kitchen breakthrough:
"Aluminite Frugier was one of the great French kitchen innovations of the Belle Époque. Its inventor, René Frugier was a ceramic engineer who trained at Sèvres, before setting up own pottery factory in 1895 in Limoges, the porcelain capital of France. Frugier & Cie started out as one of dozens of Limoges porcelain factories. It soon set itself apart, though. Around the turn of the century, René Frugier began to experiment by adding different amounts of kaolin to the pottery mix. That meant he could then fire the porcelain at very high temperatures. The result was “aluminiteâ a range of fancy porcelain that could resist temperatures 300 degrees apart and still come out looking great."