More will be revealed once I actually take possession of the bike. I’m thinking that seeing some brand names on components will help me narrow down the year of origin on this one.

Does anyone know when those type of front “suicide” type of shifter levers were in common use, and when they might have been phased out as a stock item on bikes that were sold?
This bike doesn’t look like it was too heavily modified after sale (aside from the addition of all of that rust)!