Your picture is far too blurred to make out any detail but it appears to be a Dutch hallmark.
That is the bigger spoon cheers
This is, as I suggested, a Dutch hallmark with the silver standard mark for .833 silver and the date letter H for 1917. The Minerva’s head mark should have a letter on the cap (not visible or discernible in your picture) indicating the regional assay office. The mark on the left in your picture is the maker’s mark, but I cannot identify it.
I note that the date letter and maker’s mark in your original picture are both different to those in your new picture.
My source for the above is this site. You may be able to find some more information for yourself there.
Thankyou the spoons are quite unusual looking regards glen