There are about 10 different yellow brasses, nothing that is
commercially called "red bronze", but maybe 50 possible alloys that are
sorta red and sorta bronze. Some of em have zinc in em, or nickel, or
lead, or silicon, or aluminum, or any of 10 or so other common alloying
ingredients.

There are well over 100 common copper alloys out there, and the only
way to really id em is spectrographic analysis- unless you can trace it
back to the manufacturer, its all just "copper and something else".

In other words, "brass", and "bronze" are just sort of generic terms
for stuff that is sorta yellow, and stuff that is sorta red or brown.
But unless you actually know the 5 digit number of the alloy, its all
worth the same price, which is mixed copper scrap price.
At least, thats the way it is at my junkyard.