For such low production numbers, there sure are a lot of discussions about them online. (Which makes me: A: question the accepted production numbers; and B: Wonder how many people bought them thinking they just hit the "jackpot"...)
The general consensus seems to be that the Royal Canadian 336s are worth only $50-150 more than a comparable 336 from the same production period. Being .35 Remington, you can add $25-50.
Without photos, my "real world" value would be $230. It is, more than likely, worth notably more; but that's my baseline for functional 336s.