I find that kind of rubber band suspension very interesting and I've heard that it gives a very good ride, only I wouldn't know where to begin with trying to find a suitable suspension band down here in New Zealand.
Wow, a tandem moped. I like it. With a sidecar fitted on that would make great family transportation.
That 1902 Blomster looks like somebody's motored bike conversion from long ago.
Thanks by the way for sending me all the information on rubber suspension bands. I haven't gone through it properly yet, but I can see it's going to be useful.