Vintage Engineering Instruments Inc Wooden Slide Ruler w/Case Made in Peru, Ind.  It measures 1 1/8" tall by 10 1/2" wide by 3/8" thick.  Ask questions before bidding and sold as is.  I will give feedback after I received back from the buyer.  Please review the pics for more details on the condition of this item. (see Pics) (See Pics)