Help Me Identify This Item

[mrauditor]

Once a week I stop by a local business whose entire inventory is from outside storage facility auctions. It is always interesting to browse and I have gotten to know the owner and employees . This particular week they had just put out for sale a nice collection of knives, ammunition, holsters and reloading accessories. The item in my attached picture was placed in that area next to the reloading items. They have no idea what it is and neither do I. Perhaps it is not even related to reloading, but I am going to guess it is. The item is a nice weight metal and does fold together like an accordion. It is approximately 8 inches tall and wide and folds to approximately 2 inches wide. They have two of them, one has its own box. Any ideas ? Thanks.

 

[MSAA]

It's a whatsyoumacallit!

 

[Kahrnut]

 

[bakrzdzn]

No, that's a thingamajigg. It has to have the two g's at the end or it gets confused with a thingamabob.

 

[Radar363]

It's definitely not a Fetzer valve...
Looks like a pantograph to me.

 

[crippen]

I’m going with some sort of layout tool.

 

[jeep78]

I have used rivet spacers very similar to that when laying out a rivet pattern.

 

[palmettomoon]

Thankfully that looks nothing like any reloading tool I've seen in 30 years. Otherwise I'd have certainly put my eyes out in that time.

 

[3rd Rail]

What's the box made of?

 

[Kahrnut]