I call the chips "Lindys" because they resemble Lindbergh's plane. In Seymours "Antique Gaming Chips" book they are catalogued as PT-AY.
All chips are in good to excellent condition for their age. The item "Antique Poker Chip Set Embossed Clay Airplane chips & covered holder No Reserve" is in sale since Friday, April 27, 2018. This item is in the category "Collectibles\Casino\Chips\Poker Chips". The seller is "captainchip" and is located in Mooresville, North Carolina. This item can be shipped to United States.