966. 9-1/2" long:
967. 8-1/4" long:
From Jim Brown's collection.
968. 14" long:
969a. 12-1/2" long:
969b. Another version of the same device, the jaws on the right open to a maximum of approximately 3" from point to point. 5" long:
These last five photos are all related:
Larger expanded view of this photo
Last week's set is seen below, click here to view the entire post:
More discussion and comments on these photos can be found at the newsgroup rec.puzzles.