For sale is an old Bendix-Friez Aerovane Wind Indicator, model 130, serial number 723 and part number 513641-2. I was told that it came from an FAA center's traffic contol tower in Pomona NJ back in the 1940's. The instrument weighs 20lbs and has two dials. One determine's wind speed and the other determines wind direction. This anemometer has some paint loss but is still in nice enough condition to display or restore. Email any questions and good luck bidding!