Antique scale...any help?

[TreasureHunters]

Picked this up at a church sale, they wanted $10 I offered $5 they counteroffered $7 and I took it. Can anyone help with value? Thanks
Vintage Antique Cast Iron Aero Balance Weighing Scale RARE Hard to Find | eBay

 

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[jerseyben]

Why don't you just wait 2 more days and you will have your answer.

 

[Paleopilot]

Looks like a nice old scale, you will need a set of weights though.