Vintage 1960's WEATHERCASTER Slide Rule with EVINRUDE Outboard Motor Advertising. This is a wonderful, brilliant tool for using old technology to calculate and display data to calculate weather.This instrument contains all of the data necessary to predict weather in a simple. The Weathercaster comes complete with all original items including the original bstorage box. Weathercaster slide rule measures 10" x 1-1/2" inches in size. This item is in the category "Sporting Goods\Fishing\Fishing Equipment\Other Fishing Equipment". The seller is "continentalhobby" and is located in this country: US. This item can be shipped worldwide.