Crandall's double splice barbed wire - a very old kind. | Flickr
Two-Hook Wire Fence Stretcher | Gemplers
RARE BARBED WIRE SPLICE | Collectors Weekly
The Mystery Tool. | The Garage Journal
Barbed Wire and Other Fencing Options
How to Repair Broken Barbed Wire | How to repair a broken strand of barbed wire without steel crimps. I'm in the process of recording and editing a small series on barbed