I snagged the image below while looking online for dovetail examples.
Instead of two boards coming together, it appears that the joint, what I called the spine in the title, is a third piece to which both boards connect. (Example 1, 2, 4, and 6 reading left to right)
- Is there a particular name for this type of join that differentiates it among other dovetails?
- Would this have any effect on the strength of the joint?