I've had it at least ten years now. It was a gift given to me at the Blade Show by a bladeforurms member who was part of a group I used to pal around with online and at the shows. It was quite a surprise.
I did reciprocate by sending him a barlow knife made by a master smith. Not that he expected it or wanted anything, but I couldn't live with myself if I didn't find a way to show my gratitude.