The Silver Squirrel has dated this piece to the 1910s.
The case is also superb other than slight deterioration of the lid silk, see final photo.The spoons measure approx. 4.57 inches (11.6cm) long by 1 inch (2.6cm) wide and the tongs 14.5 inches (12cm) long by 1.75 inches (4cm) wide across the grips and they have a combined weight of 104 grams excluding the case. Beautifully made examples.
The Silver Squirrel has dated this piece to the 1910s.
You can view the stock and full dealer information on the The Silver Squirrel Profile Page