A German (?) dagger or stiletto

[corrado26]

Completion to my collection of iron daggers and stilettos, remarks are invited. Total length is 235 mm, length of blade 135 mm, width of blade 10 mm weight 267 g or 9 3/8 ounces for thos who prefer british dimensions.

[mariusgmioc]

narrow, slender blade of triangular cross-section, exclusively for thrusting = stiletto

However, the construction is rather strange and I wonder if it isn't a 19th century example.