Notes:

Hall noted that the first printing was preceded by several presentation copies numbered "00" or "000". He did not, though, assign these copies a bibliographic code. Out of bibliographic necessity, we have added the code *E12b(x) to designate the presentation copies we have seen. One of the presentation copies appears to be an advance or pre-production copy; we've designated it *E12b1. The other two copies we've seen are identical except for the color of the wraps, and these we are calling *E12b2.