Well, that's the giveaway! It's variously described as a Curtis "Pusher", B18 and in one case a B2. I can find no definitive reference to a Curtis B18 anywhere except in reports of the flights in Hawaii. It was demonstrated there by Bud Mars (double bubble there - Hawaii/Mars!) in 1910 on the Curtiss company's 30,000 mile world tour.
I suspect this must in reality be a type 2 modified with a single foreplane but can find no other reference to the specific model.
Bud so disliked people watching from the hills and not paying an entry fee he decamped in a huff to Japan - the old cheapskate!
Thanks SLB.
http://hiavps.com/Bud%20Mars.htm
Nothing to offer I'm afraid,