I know most of you don't need this, but you might know someone who does. When I used to teach basic jewelry making, students had a hard time getting exactly what a properly closed crimp tube looked like. Even though I had a good example and demoed it to death, it just didn't get through until I used a mental picture of a cardboard tube.
So the other day we took the pictures. And I wrote this out today...
Just for fun...
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