For first time visitors I recommend this archive for some of my best posts.
1741. 4" long:
1742. 6" tall, submitted by visitor who is looking to find the purpose of this box:
1743. The cylinder is about 3" long:
1744. 16" long, from the 1840's, take a look at Neatorama for more guesses on this device, where they are offering a prize for the correct answer and also for the funniest:
1745. Approximately 11' tall:
1746. 10-1/2" long, sent in by a visitor who would like to find the purpose of this box, it has the letters G E R stamped on the top, the words "Made in England" on the bottom, and sliding vents on both sides.
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.
Black Ops Pro Tips
More discussion and comments on these photos can be found at the newsgroup rec.puzzles.