Michael,

I am not sure of the value of notched chips. It has been pointed out before, that anyone can notch a chip.

The CR lists values of some notched or drilled chips. In most cases very few if any of the real chip exist. These chips were notched or drilled by the casino.

In my opinion chips notched for samples by the manfacturer are worth whatever price the current owner puts on them. Could he ever sell them for his price? Who knows? To date, I have never tried to sell one. I have had some dupes and usually trade them for any chip I don't have, regardless of denomination.