A Hartford Courant article from March 9 1983 by Blair Kamin does a much better job of describing this section of the elaborate architectural detail than I ever could:
 Kamin, Blair. Restored Masonic Hall Poses Marketing Test. Mar 9, 1983, pg. B1.
In its center section, which consists of wood carvings, the architect set, in descending order, an all-seeing eye, the Masons’ square and compass, a Masonic cipher in Hebrew letters acknowledging God’s power, the date of construction and an imaginary Greek temple containing the five classical orders (from left to right, Tuscan, Doric, Ionic, Corinthian and Composite).