Well, congrats, very, very nice book, but why are you obscuring the serial number?
my big-time quest for this book (with Chris) ended when Michael acquired a NM one! At one time I was offering £500 for a copy
If this is a new one, yours is copy no.7 (or no.6 if you discount the MSU one)
It's a new one; mine since I bought it. I no longer have my canceled checks, but I do have -- I dug it out a week or two ago -- the register, showing I wrote a check to Eclipse Enterprises for $5.00 on 12/21/1985. My vision, at the time, was not very good -- nearsighted -- but also wildly unbalanced, as my left was MUCH more severe than my right. I could not resolve the 3D effect well (and even today, I'm not much good at resolving "magic camera" hidden pictures). Cat did ask for letters of explanation for those interested in buying the non-3D versions, and this is what I wrote her.
Curiously, a few years later, I had radial keratotomy (the procedure cat mentions in the final line of her vision essay) on both eyes, immediately improving both greatly. I still have some astigmatism (RK does not address it), but my nearsightedness has been gone ever since. There are more advanced procedures now -- and my RK corneal scars (which are nowhere near as bad as they sound) make me a complex candidate for further surgeries -- but the RK was a blessing to me, and I can resolve 3D just fine.