1942-1952 Buick wheel rim

[Dynaflash8]

I think I finally found a decent 15x6 Buick rim for my spare tire.  It doesn't have the clips, but I have them, but that proves it is newer than 1948.  The tire on it was a 7.60x15.  Once the tire was off, we tried to measure it to the spot where the tire bead fits.  It was really hard.  It looked like it might be 6.25" there, but nothing was straight to measure to, so we decided it was probably simply identified as a 15x6 rim.  I'll know when I get back to Florida and have my tire mechanic measure it his way.  The wheel came off a 1952 Buick Super.  Anybody got an opinion?