Serpentine Antiques has dated this piece to the 1930s.
The retailers label is in the case lid. They are F. Lepauvres Cie, jewellers and goldsmiths, of Rouen.

The glass bodies are beautifully cut in square patterns and the solid silver tops are tapered and stepped, and screw fit to the bodies. They are presented in the original fitted gilt embellished case, with silver plate iconic Art Deco clasp.

Size-1.25 inches square by 2.25 inches high. Case-10 inches by 4 inches by 1.75 inches high.
Weight-180 grams alone or 385 grams including case.
A very nice set in very good condition, allowing use as 4 pepperettes or 2 pairs of salts and peppers.
Serpentine Antiques has dated this piece to the 1930s.
Specialising in unique pieces for the discerning individual, selected and prepared with special care..
You can view the stock and full dealer information on the Serpentine Antiques Profile Page