Don't know if you like narrow dagger models, but these are high quality ones and can still be found if you look hard.
(this one is in my own collection)
Vintage Othello (Anton Wingen Jr.) 4375 dagger from the early '80's, with leather sheath & steel beltclip on the back.
The thick blade with ovalized ricasso is most likely made from drop-forged 440C steel, a process that Anton Wingen Jr. used to be famous for in it's day.
(AG.Russell's Sting daggers were also made this way by Anton Wingen Jr.)
Imo a good example of the quality that came out of Solingen only a few decades ago.
Specs:
Overall length: +/- 9 inches (24,4 cm)
Blade length: +/- 5 inches (12,8 cm)
Max blade thickness: 6,6 mm (ricasso)
Steel: drop-forged 440C stainless
Handle material: Brown linen Micarta with brass guard & pommel
Sheath: Brown leather
Weight: 150 grams without sheath