After seeing those pics, it made me start looking for an old Atlas 100 my step-grandpa used to have when I was 12-14. Gearing was N,1,2,3,4,N,1,2,3,4 and around again. We used to pic up the rear, wind it up in 4th and drop it for a burn out, lol. Could not break it. I think he bought it from Montgomery Wards (Similar to JC Penny's). Searches show it to be made by Gilera I think. No pics of it found though.
Kewl pics you added there!