I have TCR 10 which makes this chip N4701 value I (40-49) and Volume 2 of the Official Guide which says R-6 with 31 -75 known survivors (20-40-60) but I realize both of these guides are outdated. My co-worker has more than 1 but less than 2 stacks of this chip. Can someone give me a realistic value if he decided to sell them? Thanks for all of your help.