Name that thing.

me too

only used it once...its more of a tool for someone working in a machine shop who comes across weird engines where theres not always room for hands and eyes

 

Milk bottle caps

Rolodex

Typewriter ball

 

197706 is what we used to call a church key. for obviously satyrical reasons. 197707 is something to pry with, though i forget what specifically it was made to pry at. probably something on a car.

 

3D picture Viewer

 

Looks like something you could hurt yourself trying to use.

 

Acceptable. "View Master"

 

flash bulbs

 

Yes. Damn things were pretty bright too, remember?

 

Used to advertise what?

 

the other one looks like corbin keys

some of the old houses here still use them

 

Yes. We called them skeleton keys, but that's probably the correct name. Had to use these to lock the old wooden doors
At the house I grew up in.

 

probably lots of brands out there...it just seems all the ones i come across were made by corbin