Bill,
The newsletter, currently at the printer, says July 19-23. I hope that's right!

-John
EDIT: I just spoke with Fred Morse at the museum and he found that the laminated poster on the building says the week of the 12th, as does the web page. However, the calendar that we sell says 19-23, as does the newsletter. Fred will ask that the laminated poster and the web page be changed to match the for-sale calendar and the newsletter, i.e. 19-23. Thanks for noticing this.