Set 176

1019. 2-3/16" long:

The outer two are imprinted with a 4 on the large end and a 3 on the other, while the middle one is marked with a 1 (small end) and a 2.



The ends can be unscrewed and/or pulled out of the cylinders, five pieces total for each.



All of the threads have two slots and all three cylinders have a different inside dimension. I've shown these to a lot of people, so far no one has been able to identify them.











1020. 6" diameter, made around 1800:















1021. 12" long, patented in 1876:







From Ron White's collection











1022. 16-1/2" long:

From Jim Brown's collection











1023. 1-1/4" diameter, thanks to Bill for submitting this one, more guesses at Neatorama:

Patented in 1899











1024. 15" long, text on this device reads "The Leeds and Northrup Co., Scientific Instruments, Philadelphia":






















Answers
























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.

Set 175

1013. 2-1/4" long:


A view of the other side:












1014. 12-1/2" long:












1015. 5-3/4" long:












1016. 44" long, take a look at Neatorama for more guesses on this one:















1017a. 15" tall:






1017b. Another version of the same device, circa 1750:









1017c. Similar to the first two but made for a different purpose, made in 1582:

Larger image











1018. 10" long:























Answers


























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.

Set 174

1007. 11" long:






Another version of the same device:

From John Sindelar's collection


Click here to see a larger image.













1008. The part on the left is about 18" long:

Larger image













1009. 12-1/2" tall, made of silver and brass, from Germany
circa 1652:



Larger image
When viewing the enlarged photo it might be necessary to click on the picture to increase its size, also try hitting the F11 key to get a larger viewing area.


Larger image











1010. The word on the second line gave away the answer so a couple of its letters were removed, 13" long:



From Jim Brown's collection.











1011. 15" wide, pivoting the handle 180 degrees raises the upper part about 1":












1012. 16" tall, made in Europe around 1700, take a look at Neatorama on Thursday for more guesses on this one:







Larger image

Close-up #1

Close-up #2

Close-up #3








Answers
























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.

Set 173

1001. 30" tall:












1002. Submitted by a visitor who is looking to find out what this tool is:












1003. 16" tall, when this device was new the circular parts on the upper right had small nets attached to them:












1004. 40" long, made of bamboo, with a metal clip. Take a look at Neatorama for more guesses on this one, where Alex is giving away a t-shirt for the first correct answer.

From Jim Brown's collection.











1005. 12" long:
















1006. 7-1/2" long:

As you can see in this close-up, the holes are numbered 3, 3-1/4, 3-1/2, 3-3/4, 4, 4-1/4, 4-1/2..., with each integer having four holes. The last hole on this side is marked 17-1/4. The numbers appear to indicate a measurement in millimeters.


The first hole on the other side is 17-1/2 and the last is 23. I don't know exactly what this gauge was used for.

Close-up
































Answers

Next week I'll be out of town for a few days, so I'll be posting on Wednesday instead of Thursday.




























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.