 1 Lockheed 10 Electra in Flight The image is probably a stock photo they acquired from Lockheed to make this postcard.
|  2 Lockheed 10 Electra in Flight This card was issued out of their Seattle, Washington office. The AZO 4 squares stamp box dates the card to the 1926-1939 period.
|  3 1st Tinted Series Close Up - Blue The earliest of the airline issued color tinted litho cards are all rare. I know of 4 different cards in the series.
|  4 1st Tinted Series Close Up - Blue The backs in the series have the same color printing as the front.
|  5 1st Tinted Series Flying Right - Green All of the cards in this series feature the Lockheed 10 Electra.
|  6 1st Tinted Series Flying Right - Green The typical back for the series. This one in green matching the front of the card.
|  7 Sky Zephyr Series Close Up The Sky Zephyr series, I believe, is another 4 card series. All the cards seen are black & white lithos.
|  8 Sky Zephyr Series Loading Package The cards in this series are very scarce though probably not as rare as the first tinted series.
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 9 Sky Zephyr Series Close Up This is a typical back for the Sky Zephyr series.
|  10 2nd Tinted Series DC-3 on Tarmac - Black
|  11 2nd Tinted Series DC-3 on Tarmac - Black
|  12 2nd Tinted Series DC-3 on Tarmac - Blue
|  13 2nd Tinted Series DC-3 on Tarmac - Blue
|  14 2nd Tinted Series DC-3 on Tarmac - Green
|  15 2nd Tinted Series DC-3 on Tarmac - Green The card was mailed at Fargo, North Dakota on July 18, 1941.
|  16 2nd Tinted Series DC-3 Cockpit - Black
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 17 2nd Tinted Series DC-3 Cockpit - Black
|  18 2nd Tinted Series DC-3 Cockpit - Blue
|  19 2nd Tinted Series DC-3 Cockpit - Blue Card was mailed by an employee of N.W.A. and is postmarked August 6, 1941 at Fargo, North Dakota.
|  20 2nd Tinted Series DC-3 Cockpit - Green
|  21 2nd Tinted Series DC-3 Cockpit - Green
|  22 2nd Tinted Series DC-3 Cockpit - Yellow
|  23 2nd Tinted Series DC-3 Cockpit - Yellow
|  24 2nd Tinted Series DC-3 Flying - Black
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 25 2nd Tinted Series DC-3 Flying - Black
|  26 2nd Tinted Series DC-3 Flying - Blue
|  27 2nd Tinted Series DC-3 Flying - Blue
|  28 2nd Tinted Series Lakes and Streams - Green
|  29 2nd Tinted Series Lakes and Streams - Green
|  30 2nd Tinted Series Old Cow Hand - Green
|  31 2nd Tinted Series Old Cow Hand - Green Card was mailed at Seattle, Washington and is postmarked July 2, 1941.
|  32 Northwest DC-3 Interior
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 33 Northwest DC-3 Interior
|  34 Northwest Stratocruiser
|  35 Northwest Stratocruiser
|  36 Northwest. Martin 202 NC93050
|  37 Northwest. Martin 202 NC93050
|  38 Northwest. Martin 202 N93051
|  39 Northwest. Martin 202 N93051
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