Take a look at Neatorama for more guesses on this device, he's giving away two T-shirts this week, one for the first correct answer and another for most humorous guess.
996. 10-3/4" long:
997a. 4" long, this tool has three functions:
998. 11" long, the head of this hammer is made of metal:
From Jim Brown's collection.
999. 16-1/2" long, this tool is missing its wood handle:
1000. 18" tall:
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.