Protractor identification

[jeepinmatt]

Trying to find another folding protractor like this one. I've never seen another one like it, and can't find any brand or part number markings on it.

I bought it from Dollar Tree for a dollar in about 2004 and wish I would have bought a dozen of em in hindsight. It's the only one I've ever seen where the corner pivots right on the vertex and keeps the legs the same distance from the vertex.

 

[Junkyard Dog]

I'm impressed it doesn't have CM on it

 

[zuke]

I think that's actually a goniometer....

Amazon.com : Goniometer

Amazon product ASIN B09533BZND

 

[jeepinmatt]

I think that's actually a goniometer....

Amazon.com : Goniometer

Amazon product ASIN B09533BZND

I think you're right, or a protractor-ruler (Pro-ruler) also. Regardless, its great for drawing, because your lengths don't change with the angle and your zero point is always right at the vertex.

I actually found what has to be the original manufacturer:

Safe-T Pro>Ruler Combination Protractor, Triangle, and Ruler, Group of 2

These clear plastic objects are two different sizes of the same instrument. Each instrument consists of two rectangular pieces with half-discs at one end. The pieces are held together at their curved ends with a metal thumbscrew, so the instrument resembles a sector.

americanhistory.si.edu

But it's a historical documentation website, so still no progress on being able to buy another.

Here is a similar one, but doesn't have the "ruler" part:

Goniometer/Pro Ruler/Angle Measurer | Activities for Learning |

www.rainbowresource.com

 

[jcramsey]

Scale Rule and Protractor Safe-T Pro Ruler 43051 | eBay

I think that’s the smaller one though….

 

[jeepinmatt]

Scale Rule and Protractor Safe-T Pro Ruler 43051 | eBay

I think that’s the smaller one though….

Yeah, saw that one yesterday. Smaller, and some of that communist metric BS

But I really need to know how they can ship from Portugal to NC for $4.35. It was gonna cost 3 times that to ship your kids water bottle from Charlotte to Marion

 

[NCJeeplover]

But I really need to know how they can ship from Portugal to NC for $4.35

Same thing on the shit from china. How can you sell me an led bulb for the camper for $4.50 and ship it directly from china to me? It would cost me $25 bucks just to ship something the other way!