Brewer Co. Cincinnati Ohio Concrete Calculator Slide Rule 7" $7.00 USD Sold on: 2013-Apr-06 Marketplace: eBay 1 Treasure 0 Trash 100% Detail: Plastic slide rule concrete calculator from The Brewer Co. Cincinnati, Ohio. Shows normal wear, but all printing on both sides is very legible. It is 7" long. An interesting advertising or contractor-... More Relevance Historical Items
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