For first time visitors I recommend this archive for some of my best posts.
1699. Submitted by a visitor who is looking to identify this piece of hardware that was found in the deserts of Nevada:
1700. The head of this tool is 10-1/2" long and can freely rotate, take a look at Neatorama for more guesses on this one:
1701. These levers control something that everyone is familiar with although most people probably haven't seen it up close:
1702. Approximately 12' long:
1703. About 2-1/2" tall, the part in the middle is spring returned to the position shown and can pivot about an axis on its left side, from the late 1800's:
1704. Around 20" tall:
To submit photos, send them to the address in my profile.
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.