Please help to Identify this spoon.

Hi, can anyone please tell me what kind of spoon this is, I have only come across simular spoons only once and this time around I just could not pass them by. I beleive the maker is Walter & John Barnard assayed london office for 1881 does anyone know if this maker is collectable and any idea on what the value on these spoons may be.

Thanks Jim
Berry Spoon.jpg