Sorry guys but something here does not add up. Was the first Wright flight not in 1909?
This cover has gone from Oregon to Uk in 4 days. Even ships took a couple of weeks to make the crossing.
The postal service in UK at the time could certainly have got the mail from IOW to London in a day, it is only a hundred miles or so and there was an efficient railway system then.
Either the cover dates are wrong or the CIA and area 51 became involved.
vic
Ok they first flew in 1903 but even Wilber was only flying short trips in 1909.
As far as I know, there was no regular airmail service across the North Atlantic until the initiation of North Atlantic Airmail Service on June 28, 1939. I think that the cover must have been posted several weeks prior to its delivery.