I'd like to find out the brand
I'm new here, btw, I got this vintage 1970'ish road bike, all brand tags were removed by who knows who, but I've had the bike for some 7 years, the guy who sold it to me said he guessed it was a chinese brand, but I wonder if by looking at the serial number on the frame would help. It is maroon, frame is steel, heavy and if I have the chance, I'd attach a photo of it.