This is an original Grumman Gulfstream GIII Corporate Jet Pilots Airspeed Indicator Gauge Instrument .  It is 4  x 4 x 9 inches.  This item is being sold as a collectable and may not work. Payment must be received within 10 days of auction closing unless prior arrangements have been made. Buyer to pay shipping. AZ residents add 6.7 % sales tax. If you have any questions please contact me via e-mail before bidding. Thank you for your interest in my auctions