Jame B. Beam Royal Emperor Straight Bourbon Whiskey
 

I have a question about this bottle of Whiskey:

1952 (or 1958, both dates are printed on the seal) James B. Beam Royal Emperor Kentucky Straight Bourbon Whiskey. I have come into possession of an almost full bottle (was opened once for tasting, then re-corked) of this whiskey, and I was wondering how aged it is when bottled, how much it is worth, etc. I have not been able to find any information about this whiskey online, and I was hoping someone could shed some light on this. Thanks!