VTG True Airspeed circular slide-rule Computer G. Felsenthal & sons Black FNA-26 For Sale

The VTG True Airspeed circular slide-rule Computer by G. Felsenthal & sons is a vintage aviation collectible from the United States. This airspeed computer, known as the FNA-26 model, is a unique tool used for calculating airspeed on a circular slide-rule design. It is a piece of aviation history that would be sought after by collectors of transportation and aviation memorabilia. With its authentic design and country of origin, this product offers a glimpse into the past and the technology used in the aviation industry.