Silver Serving Spoon 1818 Holm P - very old

Up for auction is a hundred year or older Serving Spoon:

On back is stamped 4 different symbols.

First one is unknown with year 1818.

Second is circle with letter 'P' inside.

Third is rectangle with word: HOLM

Fourth is horse like symbol.

Spoon is 9 inch in length.

It could be sterling or silverplate. Does not state.

Yes, I will combine shipping.