The Silver Squirrel has dated this piece to the Georgian era.
They have been superbly designed being engraved with butterflies, the design was probably added c1870 to plain Georgian spoons when everything Japanese was the height of fashion. They are in superb condition being free from dings splits distortions and repairs. They measure approx. 8.75 inches (22cm) long by 1.75 inches (4.6cm) wide and have a combined weight of 108 grams excluding the case. A very good quality well made set.
The Silver Squirrel has dated this piece to the Georgian era.
You can view the stock and full dealer information on the The Silver Squirrel Profile Page