Baron Margo, an artist and sculptor, has an amazing collection of vehicles, models and sculptures of all sorts. They all seem to have that steampunk look about them and this motorcycle, the "Phantom" is a case in point. There are no details on what specific motorcycle he started with but the end result would fit well into some movie like "The League of Extraordinary Gentlemen."
You would expect this particular bike to have been a futuristic concept model at a motorcycle exhibition about 90 or 100 years ago. I like it. This guy looks like he has a lot of fun out in his workshop.