BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20100501T083000
DTEND:20100501T103000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140521;BYDAY=1SA
SUMMARY:Drayton Hall Preservation Tech Tour
END:VEVENT
END:VCALENDAR