Indian

[JohnR]

Better look at this if you have not already?

http://www.photos.indianmotorbikes.com/bw/index.html

Looks like a Vincent conversion to me?

http://www.photos.indianmotorbikes.com/bw/bw050.jpg

[c.o.]

Now would we call that a Vindian???

[koanes]

Factory prototype? 48 Chassis, that explains what happened to the 49's, the engineers spent the whole year trying to fit the ? motor.