This looks fantastic, but it doesn't give me any reference as to which month I'm actually looking at.... i.e. I drag the frame so that the 1st is a Saturday, but what month in what year am I looking at? Will the 1st of July 2015 be a Saturday, I have no idea from this.
Most wall calendars show 3 months (current month large, previous and next small), precisely because it's so common to want to check the day of a recent or (more commonly) upcoming date.