Long thought lost, this film was restored and finally made available to the public in 2015 with a screening at TCM Classic Film Festival. Film preservationist Rick Schmidlin oversaw the restoration after obtaining the single surviving print from long-retired juggler Larry Weeks, who had himself gotten the print from the Harry Houdini estate in 1947.
The person jumping from one plane to the other is not Harry Houdini, it was a stuntman named Robert Kennedy (other sources say it was actor/stuntman Monte Blue). When news of the mid-air collision of the planes made headlines, Houdini cheerfully offered a reward to anyone who could prove that it was not him doing the stunts. Of course, he failed to mention that it really wasn't him performing the feat.
According to the dates appearing on the Daily Call magazine supplement in which Mary Cameron's short story is published at the beginning of the film, and the Daily Call newspaper shown towards the finale, the action of this film takes place between Saturday, 17 May 1919 and Saturday, 21 June 1919.