Auction: 312 - Numismatic Collector's Series Sale
Lot: 2597
Custer Channel Wing (MD), Seven types of shares, 1959-71, Fine-EF, most high in high end of condition range. Though Willard Custer´s concept for the channel-wing plane was established in 1928, he designed his first functional one in 1942; though effective at lower speeds and altitudes, it was impractical for regular use. [127]
Estimate
$500 to $700