Mark's annual St. Patrick's Day blog entry, to kick off the weekend.
https://petersonpipenotes.wordpress.com/2018/03/16/84-a-visual-history-of-the-st-patricks-day-pipes-1998-2018/
https://petersonpipenotes.wordpress.com/2018/03/16/84-a-visual-history-of-the-st-patricks-day-pipes-1998-2018/