I have a 1986 Gibson Les Paul Custom. Looking into the control cavity, I see that all four potentiometers are stamped R1378511. The two tone pots also have the code 71-079 stamped on them. I cannot see the second stamp on the volume pots because these numbers are hidden underneath the solder connecting the various wires.
What resistance are these pots? Is it reasonable to assume that the volume and tone pots have the same resistance because they are all marked R1378511? Or is it possible that the volume pots have some other different code concealed under that solder? Any additional information about these pots and their codes would be appreciated.
Note: It did occur me to just put a multimeter across the pots, but they are wired together with the pickups, and I don't know the DC resistance of the pickups.
EDIT: I did managed to find a bit more information about the 71-079 code. This article also suggests that there is meaning in the R code. I might be overreaching a bit, but the code on mine might indicate they were manufactured in the 11th week of 1985.