The Kilmers cure bottles (embossed with the kidney) have not appreciated in value much. They had gotten up around 20 or so but because they are so common and with the availability on the internet they often will sell not sell for 10 bucks. I would value them at 10-15 regardless
The bottle he was talking about was the one with embossing on it. The one with the liver on it would be more. If the paper label was on the back it would go for even more. The bottle with the embossing on em go for about 5 bucks a piece. I could actually buy em for less at antique stores. I guess its what swamp bottle you have and how attractive it is.
I think I currently list 5 different variants of the cure with the kidney shaped recess. One is fairly common , the other range from scarce to rare. For instance there os a 9" longer neck version that is much less common.