Thank you for the additional pictures. I still have no idea what brand it is, and I also still think the wheels and fenders might be younger than the rest of the bike. Like [MENTION=333224]juvela[/MENTION] has stated before, it would have had a chainstay-mounted rear dérailleur, and a shifter on the top tube, much like this bike:



Having said that, even with the parts you've got it would be nice to get it back on the road.