This Vintage 1980s Haller Rostfrei Folding Push Dagger – Tak Fukuta Seki Japan Knife is the Haller folding push dagger, made in Seki, Japan by Tak Fukuta for the market in Germany. It is a lockback in the open and half position (it barely catches in the half way push dagger position - may need adjusted). This knife features a thin stainless steel blade. A Seki, Japan warehouse find.