Here are a few of my Ruana's. Notice the sheath design with the elk head which shows the difference between the "Ruana" sheaths and the "R.H. Ruana" sheath which reflects the difference between the R.H. Ruana stamp, which is older and more desireable, than the newer, Ruana alone stamp. This is not to disparage the newer Ruana knives, as they are every bit as good or better than the older rudy knife for using. I have a few of them as well. It's the collector issue here that is in question and for any potential collector, and for those folks, just remember that the R.H. Ruana and with the "M" stamp or the "small knife" stamp are worth more than the plain "Ruana" stamp.