reminds me a bit of this viking ''woman's knife''
yours is just a bit more macho.
possibly grip/ grip-blade angle has been bent a bit more than when 1st made? i suspect that when the blade was forged single edged it naturally formed a curved blade as the edge was hammered thinner the displaced metal bends the spine. double edged and spear point variants do not have that problem (or feature). somebody wanted a slicer rather than a thruster.
(still might be a victorian gardening impliment
)