1934 Coil & condenser tester/seller, complete & working

Description

Wow!  This is an item that even Jay Leno may not have yet?   Everything works, all meters and spark gap as well.  Full instructions plus an unused pad of giveaway reports for customer.  6 volt system (12 volt may work?) I used a 9 volt coil, type that uses an outside resister, and it worked fine.  The motor runs on 120 volts OK, you may have to spin it to start as its starting ring may need cleaning?
I think this set was used to sell a customer a new coil or condenser by proving that his was weak???  Shows very little use, the case is fine but rusty parts and some scuffing. Great fun to play with!  The condenser checker is separate and has two radio tubes and works great.  Ask any questions, weights 20 pounds.....
You may use a 6 volt battery or a 6 volt battery charger 5 amp?  To operate system.