Obviously at 10 pounds and patterns over 90% with lead shot at 40 yards it was meant for waterfowling.
It might equally well have been a live pigeon gun. Around that time the sport was very popular amongst the rising middle classes to an extent not always recognised today.
The less fashionable makers were keen on supplying the demand (Churchill's kicked off in just that market) and tens were a common choice.
If it was a 'fowling gun it's in remarkably good condition; doesn't look to have spent much time on a salt marsh.
Eug
