What is it? XXV

A few more photos have just been posted, I have no idea what number 140 is:
http://puzzlephotos.blogspot.com/

136 appears to be designed for use with a bit brace to cut rings for Mason jars.

138 appears to be a slitter. The finger slides under the layer you wish to slit and lifts it into the groove as you slide it along. The first advantage is that you won't cut what's underneath. The second is that you won't cut your finger.

You're half right, it's for cutting rings but according to the seller it wasn't for mason jars.

I agree that it's some type of cutter, but what it's for in particular, I don't know.

Hmm, I'm wondering if there wouldn't be something interesting to be done involving a single color photo of the best 20 of these, arranged and lit in an interesting way.

Maybe a 2-page color puzzle in the middle of a Games Magazine...?

'R.H.' schrieb:

The handle of cutters like this is usually at a better angle for applying force.

It could be used to cut seams, in cloth or in leather?

'R.H.' schrieb:

I guess 139 is a puzzle (remove the ball from the two metal plates that are locked by the ball).

I guess 141 could be a gunsight that can be raised to the desired elevation by moving the bar, which locks in place with a spring.

The blade on this one doesn't seem thin enough to get the razor sharpness needed for leather, I tried cutting some and it didn't work well at all. I'm guessing it was meant for something else, maybe cloth as you suggest, or possibly linoleum as someone else mentioned to me.

Both of these are correct. You can probably figure out number 139 just from looking at it.

'R.H.' schrieb:

No, you misunderstood. I have a small one with my sewing needles, it's used to cut the threds of a seam and keep the cloth intact. Since yours is more massive, I thought it could cut the threads of a leather seam, i.e. two pices of leather sown together.

It's a wild guess though. To cut linoleum, the blade is usually at another angle to better apply force.

I see what you mean now, the blade does seem to be made to slip into a tight area, either for a seam or maybe opening bound packages.

circular gasket cutter, with different inner and outer radii.

138: Possibly a hoof knife?

139: From the first pic, I thought it was some kind of impossible puzzle, where you have to extract the trapped ball, but seeing the side view, I have no idea!

141: Looks like a very old style of foot/shoe size gage.