plumb rule การใช้

• The ornaments on the legs are of the plumb rule as in the W . M .  s chair.
• The Worshipful Master s chair has two Corinthian columns and is decorated with four plumb rules on the several faces of the legs, but it is also decorated with the square and compasses and on the back the open book of the sacred word, square and compasses and the level and plumb rule.
• The Worshipful Master s chair has two Corinthian columns and is decorated with four plumb rules on the several faces of the legs, but it is also decorated with the square and compasses and on the back the open book of the sacred word, square and compasses and the level and plumb rule.