I've had this for a while now and I've searched on Ebay, went through completed & sold listings and even searched Google for a while and came up with one result from a forum years ago and the guy was selling it for $20.
Now I come to you, gamers of Digitpress to help me with this conundrum of sorts.
The reference card is in Mint Condition if that's the diamond of it all. The guide itself is very good on a book scale.
What are we looking at? If anyone's interested willing to sell.