Historical clue formulations

• Brick carriers — 2016-02-16
• Coal carriers — 2014-02-04
• Masonry containers — 2013-08-18
• Mortar troughs — 2013-06-03
• Brick carriers — 2009-04-01
• Burdens on some shoulders — 2008-04-26
• Brick holders — 2006-06-16
• Bricklayers' equipment — 2006-03-04
• Bricklayers carry them — 1998-11-03
• Bricklayers' equipment — 1998-01-02