Vintage Chadwick Magic Brain Calculator No Batteries Required w/ Stylus 1955 $10.50 USD Sold on: 2013-Apr-30 Marketplace: eBay 2 Treasure 0 Trash 100% Detail: It is in good condition but does not come with instructions. Instructions are easy to find online and it is easy to operate. One of the rivets are loose and the alluminum is a little bent in that spot... More Relevance Historical Items
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