1930 Indian Scout 101. Fairly rare to see -30s Indians in pictures from the days compared with other brands.
A closer look reviels the year model isn't certain. The rear fender should have a hinge that came in the -29 season. It's got the 30 headlight and front fender bumper stop but older clincher rims. The pic is taken about -35 or later as its got the -35 Sport Scout carb cover, tank decal and some of the fender paint scheme. It's also missing the generator belt and cover as well as the toolbox.