WW2 BMW R12 , NSU , Indian Chief , Four , old fotos

1928-30 Indian Four , If I'm correct the last year for the tank in the frame
is 1931, 1932 starts w 2 gas tank halves. correct me if i"m wrong.

Teens Indian, my guess 1913-15, check out the acetylene gas tanker and headlight, no electrics here. As a rule I always wear a bow tie riding my teens Indian to yacht club banquets too.

1920s era Scout, cylinders are small so i'm guessing Scout, check out the long gas tank inside the frame rail.

WW2 era BMW R12.

Another ww2 BMW R12.

WW2 NSU if I'm correct.