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ANTIQUE NEGRETTI & ZAMBRA POCKET FORECASTER

This pocket forecaster was patented by Negretti & Zambra in 1915.  It is a circular slide rule (diameter 55mm) that is used in conjunction with a barometer to predict the weather for the next 12 hours.  I have tried it, and it really does work!

The ivorine forecaster is in mint condition.  The box is in worn but complete conditon.  The instruction pamphlet has only one page, the others have been lost, but you can find instructions for this forecaster on the Internet.

THIS ITEM IS NOT A BAROMETER.

PRICE INCLUDES POSTAGE WORLDWIDE

PRICE GBP 75

TO ORDER THIS ITEM, PLEASE COMPLETE AND SEND THE SECURE ORDER FORM BELOW, AND I WILL THEN SEND YOU AN INVOICE AND PAYMENT OPTIONS.

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