What is this?

[skylab]

have no idea on this one

[rudeawakening55]

I believe it's an old glass cutter...........is there a little cutter wheel on the right end?

[skylab]

didn't see a wheel, unless it broke off

[Bus]

It's a household combination tool. Yours is missing the knife sharpener bar, corkscrew and maybe a glass cutter.
Pointed end is a can opener.

I have several variations most seem to related to a glass cutter patented in 1869.

[rusty]

The trapped rectangle piece in the middle is a sharpening stone?

[Bus]

The trapped rectangle piece in the middle is a sharpening stone?

Yes. Use it by pulling the blade thru the groove between the rectangle piece and the curved extension on the side of the tool.

[Bus]

Here's some examples from my collection of household combination tools. It look's like skylab's is similar but slightly different than the second down on the left.

Top left is marked "Pat. Aug. 24, 1875", bottom three on the right are marked "Pat. 1902, 1903. Made in USA" and one on top right is marked "Pat. 09". Rest are not marked. All the ones on the left have a small glass cutting wheel on the ends.

Skylab, Are you sure there isn't a small glass cutter on the end opposite the can opener? Looks like something is there.

[Branson]

What an amazing collection.  Don't believe I've ever seen even one of these.

[Wrenchmensch]

Unsuspected, and heretofore unplombed, depths to your collecting prowess.  An amazing sub-collection!

[Stoney]

Bus that is amazing.

[skylab]

bus,
    Yes there's a very small cutting wheel on that side.   Is this still worth anything with the other parts missing?
Thanks
Skylab

[Plyerman]

Here's some examples from my collection of household combination tools. It look's like skylab's is similar but slightly different than the second down on the left.

Top left is marked "Pat. Aug. 24, 1875", bottom three on the right are marked "Pat. 1902, 1903. Made in USA" and one on top right is marked "Pat. 09". Rest are not marked. All the ones on the left have a small glass cutting wheel on the ends.

Skylab, Are you sure there isn't a small glass cutter on the end opposite the can opener? Looks like something is there.

Whoa, how did I miss this thread before?? Nice collection there Bus! I've got a couple of those somewhere....I'll have to go find them and do a little side by side with yours to see what I've got.

In the mean time, I do have something similar to the one in the lower left of your photo close at hand. It was called the "Useful Tool No. 12"   (I dunno if there was ever Useful Tools No 1 thru 11....?)

[rusty]

"Useful Tool No. 12" is mentioned on the multitool museum, and there is a 1910 ad photo (scroll down a bit)

http://www.multi-tool.org/vintage-combination-tools

Very nice :)