I have one too, I got it as a kid. Not WWII, but interesting, if the "original dies" theory is true. There is a reference to these (regarding the original dies issue) in Robin Lumsden's "Dtecting he Fakes", pg.72.
Robin, can you tell us more about this?
Collecting sniper and latewar K98k rifles, small arms, and other WWII German weapon related accessories.
Send me any info you have on "Winterabzug" K98k winter triggers