I have a hanful that I found in one of my grandad's tackeboxes after he passed away. I do know that they're Swiss made and I believe that they were originally produced by a jeweler or watch maker. Definitely something that would be interesting to look into. They're definitely very neat lures, which reminds me I should really try and find where it is I put mine so I can put them in the frame with other antique lures I've found.