Old school machines

I saw these at the Australian War Memorial, Canberra. The black one is a BMW, and the green a Harley. The seats are moulded and spring mounted, as opposed to the cushion jobs we see nowadays. According to the sign, the Harley could have a machine gun mounted near the front fork.

I like the cruisy position of the handlbars. They remind me of the old bicycles I used to ride in China.