After seeing this thread I went and found my 1968 first edition which I bought from Amateur Astronomers Supply Co not long after it came out when I was in my late teens. It has $6.75 written on the first page. It is in more or less original condition including the dust cover which I covered in clear plastic soon after I bought it. There is just a bit of browning of the page edges.
Are we really saying here that it could have significant value?
Ian
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