I am pretty sure to have already posted it but better to do it twice rather than none...
referring the dates of the printings of the D&D supplements (at the bottom of this page:
http://www.acaeum.com/ddindexes/setpage ... ments.html) i would like to suggest you to replace the first question mark on the 2nd print of eldritch wizardry with 7/76
the rationale is that when i bought as a lot the entire sets of supplements from an US seller (who was the first and only owner) i got from him the following:
greyhawk 4th print -> 7/76
balckmoor 2nd print -> 7/76
eldritch 2nd print -> ?
gods 1st print -> 7/76
swords 1st print -> 7/76
of course when i spotted that i went back to him and asked whether he bought all of them at the same time and he replied yes... as a consequence, it is likely that the print date of the third supplement is the same of the remaining ones...
if you think that my info is plausible (even if not certain), then feel free to replace the "?" with the suggested date
ciaooo