OK guys, here's my take on this one.
First off it is R109 and not 109. Those are black G10 grips and not the original blue/black carbon fiber grip sets. Looking at the photos, this gun has hardly been carried, nor shot. I say that because if you look at the front of the frame, it is like new. The "stuff" you see in the photos in the trigger guard are not wear, but simply pocket dust. Looking at the SS glass beaded trigger, take notice it is like new also, no tell-tale wear from trigger usage. Moving to the slide serrations. . . clean like new, no debris from cycling the slide. If you look at the last photograph, please note that this is the original slide. Look at the rear of the slide and you can see the sharp edge at the lower line then taking a sharp C.N.C. cut towards to the top of the slide. The slides we did a short time later we contoured that area (rounded it off) by hand on a grinding/buffer wheel. Those sharp rear edges slides are not common later on in production. Now, with all of that said, the frame on that R9 is in fact the early purplish frame anodizing treatment.
To finish my analysis of this R9 for sale: Put a set of original blue/black carbon fiber grips on this gun and it will be worth the effort as an original low number R9. With the R prefix on this serial numbered R9, this frame is the reinforced, updated version. Those R9s without the R prefix, the area of the frame where the barrel pin fits in to is thinner than the upgraded frame, which has the R prefix before the serial number.
This is a sleeper in my humble opinion.
Eric R.
BTW: I have no ides who owns this. I am just throwing this out there because I see things other people miss. I would say this is an overall tight R9 specimen that can be brought back to stock configuration with the correct grip set. Everything else on the gun looks tight, clean and correct here.