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Turnbull Patent for Sheet Metal Toy Airplane (Page 1) Drawings of Sheet Material Toy Airplane by Robert B. Turnbull, page 1 Date: November 14, 1950 Dimensions: 8 ½” x 11” Location: Wally Turnbull Collection, Durham, North Carolina, USA |
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Turnbull Patent for Sheet Metal Toy Airplane (Page 1) Drawings of Sheet Material Toy Airplane by Robert B. Turnbull, page 1 Date: November 14, 1950 Dimensions: 8 ½” x 11” Location: Wally Turnbull Collection, Durham, North Carolina, USA |