I received this knife a few weeks ago and could find nothing on the web of its manufacturer “J. KULHANEK”. Two questions, I would like to know what country (Austria/Germany?) this knife hails from? And what time frame was it made, Pre-WW1, WW1, 1920s-30s, or WW2? WW2 seems kinda late for this knife, but if you know when it was made then I’m all ears. It is missing its tweezers and or tooth picks, but it is still a neat knife. The blade itself unusually thick too, it is ¼ of an inch where it meets the crosspiece. Thank you, for any and all assistance you may provide.