Vintage 4081-3 Log Log Duplex Decitrig SLIDE RULE 1940's

Vintage K&E Keuffel & Esser Co 4081-3 Log Log Duplex Decitrig SLIDE RULE in original leather case.     In nice working condition with the glass slide cursor case in metal brackets.     No Broken parts, chips, dings etc.  Although the case does show some signs of wear for it age.  Made in USA!  This is the type of slide rule for a professional engineer.   Some of the numbers are a little faded but not bad. 

The case is about 14 inches long and 2 inches wide and about .25 of an inch  deep.  The weight is about 6 ounces.  

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The dimensions and weight posted below are the approximate size of the packaging to calculate the shipping.   Please refer to the description for the actual size of the item.  The shipping quoted includes the handling, insurance and delivery confirmation.  To give you an idea on shipping of a particular item please refer to the size and weight.   I ship from Seattle, Zip Code 98103.      Most items will be sent USPS Priority Mail despite the website's auto calculation for FED EX Ground.  The shipping weight and size on many of the older inventory is not filled in.  Please ask me to avoid surprises.    In addition some of the older inventory may have an outdated shipping quote that many need to update.    Please send me an email for updated shipping information