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Artificial Horizon 1937 Poster
The sheetArtificial Horizon 1937Everything with this designThe artificial horizon patented by Bert G. Carlson and Leslie F. Carter on 27 April 1937: the gyro instrument that shows the pilot where the horizon is, even in cloud.
US patent 2,078,560 · sheet 1 · granted 27 April 1937
The paper
Thick matte paper, 189 g/m². Sent rolled, unframed. The whole patent sheet in navy on the white paper, with the sheet’s title in Arabic and its patent number at the foot. Drawn from the patent office’s scan of the sheet at 300 dpi; the patent is in the public domain.
Size
One size: 12 × 16 in (30 × 40 cm).
Shipping
Free and tracked. The carrier may collect import tax on delivery. Arrived damaged, misprinted or wrong? Write within 14 days with a photo and we replace it or refund you.
Care
Keep out of direct sun and damp.



