Remarkable French Antique Sterling Silver 925 Brooch Birds on a Lake, Blue Enamel

  

Remarkable French Antique Sterling Silver 925/1000 Brooch with gold plating on a few parts. Birds swimming on a Lake, Blue Enamel.

Micro cabochons (less than 1mm) & micro pearls on the sides. Four Hallmarks: Two on the pin, Two on the back of one side. I don't have sufficient material to see what they are but this work is exceptional.