ICU is correct, but again, and I can't stress this enough...
If you have an older RMK that you're thinking about having refinished, please beare in mind the following...
A. The guy or guys that originally made/built/finished your vintage Randall knife have likely retired, moved on, or simply died...
B. The techniques used to build or finish your knife have likely changed over the years...
C. The overall look and/or finished appearance of the knives in general have also changed over the years...
D. That what most importantly gives value to your vintage RMK is the 'original' vintage look, fit, finish, patina, etc.
E. Take away the originality of a vintage RMK and to other than a novice collector, the value likely just flew out the window...
So, with all that said...if you send in an older RMK to be refinished, unless GTR himself is doing the work, which is pretty rare, your vintage RMK will likely come back completely refinished and looking very much like a new knife...
Thus, you will have paid good money just to reduce the overall (collector) value of your knife...a double whammy if you will, and certainly something worth giving thought to...
-S