Have a look at this video of some 1930s and 40s era bike riding sent along by
Rob Welsh. <http://www.youtube. com/watch? v=jdlpJqHxLxk>
The recumbent designs, including a "rowbike" are all still around. I
particularly liked the "BC Wheel" footage. That is amazingly impossible to
ride! Interesting that this stuff was going on during WWII
Looks to me like the titles and narration are in Polish, but it's just a guess.
tla